diff --git a/pkgs/development/ocaml-modules/biniou/default.nix b/pkgs/development/ocaml-modules/biniou/default.nix
index 75725f135518..ff3b87699356 100644
--- a/pkgs/development/ocaml-modules/biniou/default.nix
+++ b/pkgs/development/ocaml-modules/biniou/default.nix
@@ -22,9 +22,10 @@ buildDunePackage rec {
   '';
 
   meta = {
-    inherit (src.meta) homepage;
     description = "Binary data format designed for speed, safety, ease of use and backward compatibility as protocols evolve";
-    maintainers = [ lib.maintainers.vbgl ];
+    inherit (src.meta) homepage;
     license = lib.licenses.bsd3;
+    maintainers = [ lib.maintainers.vbgl ];
+    mainProgram = "bdump";
   };
 }
diff --git a/pkgs/development/ocaml-modules/jsonm/default.nix b/pkgs/development/ocaml-modules/jsonm/default.nix
index 2b9c9918382b..d29b19b3b400 100644
--- a/pkgs/development/ocaml-modules/jsonm/default.nix
+++ b/pkgs/development/ocaml-modules/jsonm/default.nix
@@ -22,6 +22,7 @@ stdenv.mkDerivation rec {
     homepage = "https://erratique.ch/software/jsonm";
     license = lib.licenses.bsd3;
     maintainers = with lib.maintainers; [ vbgl ];
+    mainProgram = "jsontrip";
     platforms = ocaml.meta.platforms or [];
   };
 }
diff --git a/pkgs/development/ocaml-modules/omd/default.nix b/pkgs/development/ocaml-modules/omd/default.nix
index b9797e257abc..cfb743cc982e 100644
--- a/pkgs/development/ocaml-modules/omd/default.nix
+++ b/pkgs/development/ocaml-modules/omd/default.nix
@@ -26,6 +26,7 @@ stdenv.mkDerivation rec {
     homepage = "https://github.com/ocaml/omd";
     license = lib.licenses.isc;
     maintainers = [ lib.maintainers.vbgl ];
+    mainProgram = "omd";
     inherit (ocaml.meta) platforms;
   };
 }
diff --git a/pkgs/development/ocaml-modules/piqi-ocaml/default.nix b/pkgs/development/ocaml-modules/piqi-ocaml/default.nix
index 8c0276bc9a7a..39869765349b 100644
--- a/pkgs/development/ocaml-modules/piqi-ocaml/default.nix
+++ b/pkgs/development/ocaml-modules/piqi-ocaml/default.nix
@@ -28,9 +28,10 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with lib; {
-    homepage = "https://piqi.org";
     description = "Universal schema language and a collection of tools built around it. These are the ocaml bindings";
+    homepage = "https://piqi.org";
     license = licenses.asl20;
     maintainers = [ maintainers.maurer ];
+    mainProgram = "piqic-ocaml";
   };
 }
diff --git a/pkgs/development/ocaml-modules/ppx_bap/default.nix b/pkgs/development/ocaml-modules/ppx_bap/default.nix
index f0a223c3db75..b1229643ae6a 100644
--- a/pkgs/development/ocaml-modules/ppx_bap/default.nix
+++ b/pkgs/development/ocaml-modules/ppx_bap/default.nix
@@ -44,8 +44,9 @@ buildDunePackage rec {
 
   meta = {
     description = "The set of ppx rewriters for BAP";
-    license = lib.licenses.mit;
     inherit (src.meta) homepage;
+    license = lib.licenses.mit;
     maintainers = [ lib.maintainers.vbgl ];
+    mainProgram = "ppx-bap";
   };
 }
diff --git a/pkgs/development/ocaml-modules/uuidm/default.nix b/pkgs/development/ocaml-modules/uuidm/default.nix
index 336d66cb0a64..7df1c588dd35 100644
--- a/pkgs/development/ocaml-modules/uuidm/default.nix
+++ b/pkgs/development/ocaml-modules/uuidm/default.nix
@@ -18,7 +18,8 @@ stdenv.mkDerivation rec {
     description = "An OCaml module implementing 128 bits universally unique identifiers version 3, 5 (name based with MD5, SHA-1 hashing) and 4 (random based) according to RFC 4122";
     homepage = "https://erratique.ch/software/uuidm";
     license = licenses.bsd3;
-    platforms = ocaml.meta.platforms or [];
     maintainers = [ maintainers.maurer ];
+    mainProgram = "uuidtrip";
+    platforms = ocaml.meta.platforms or [];
   };
 }
diff --git a/pkgs/development/ocaml-modules/uunf/default.nix b/pkgs/development/ocaml-modules/uunf/default.nix
index b61a60c2a375..d69c22db8029 100644
--- a/pkgs/development/ocaml-modules/uunf/default.nix
+++ b/pkgs/development/ocaml-modules/uunf/default.nix
@@ -32,8 +32,9 @@ stdenv.mkDerivation {
   meta = with lib; {
     description = "An OCaml module for normalizing Unicode text";
     homepage = webpage;
-    inherit (ocaml.meta) platforms;
     license = licenses.bsd3;
     maintainers = [ maintainers.vbgl ];
+    mainProgram = "unftrip";
+    inherit (ocaml.meta) platforms;
   };
 }
diff --git a/pkgs/development/ocaml-modules/uuseg/default.nix b/pkgs/development/ocaml-modules/uuseg/default.nix
index 42642d2dc24e..9d19de1c3ce8 100644
--- a/pkgs/development/ocaml-modules/uuseg/default.nix
+++ b/pkgs/development/ocaml-modules/uuseg/default.nix
@@ -26,8 +26,9 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "An OCaml library for segmenting Unicode text";
     homepage = webpage;
-    inherit (ocaml.meta) platforms;
     license = licenses.bsd3;
     maintainers = [ maintainers.vbgl ];
+    mainProgram = "usegtrip";
+    inherit (ocaml.meta) platforms;
   };
 }
diff --git a/pkgs/development/ocaml-modules/uutf/default.nix b/pkgs/development/ocaml-modules/uutf/default.nix
index c76eac45b35d..62ac1fc7c1c0 100644
--- a/pkgs/development/ocaml-modules/uutf/default.nix
+++ b/pkgs/development/ocaml-modules/uutf/default.nix
@@ -26,8 +26,9 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "Non-blocking streaming Unicode codec for OCaml";
     homepage = "https://erratique.ch/software/uutf";
-    inherit (ocaml.meta) platforms;
     license = licenses.bsd3;
     maintainers = [ maintainers.vbgl ];
+    mainProgram = "utftrip";
+    inherit (ocaml.meta) platforms;
   };
 }
diff --git a/pkgs/development/ocaml-modules/xmlm/default.nix b/pkgs/development/ocaml-modules/xmlm/default.nix
index d989b281cadd..34878cb30bbb 100644
--- a/pkgs/development/ocaml-modules/xmlm/default.nix
+++ b/pkgs/development/ocaml-modules/xmlm/default.nix
@@ -27,8 +27,9 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "An OCaml streaming codec to decode and encode the XML data format";
     homepage = webpage;
-    platforms = ocaml.meta.platforms or [];
-    maintainers = [ maintainers.vbgl ];
     license = licenses.bsd3;
+    maintainers = [ maintainers.vbgl ];
+    mainProgram = "xmltrip";
+    platforms = ocaml.meta.platforms or [];
   };
 }
diff --git a/pkgs/development/ocaml-modules/yojson/default.nix b/pkgs/development/ocaml-modules/yojson/default.nix
index 2be9ce1b0210..03b01c437766 100644
--- a/pkgs/development/ocaml-modules/yojson/default.nix
+++ b/pkgs/development/ocaml-modules/yojson/default.nix
@@ -18,5 +18,6 @@ buildDunePackage rec {
     homepage = "https://github.com/ocaml-community/${pname}";
     license = licenses.bsd3;
     maintainers = [ maintainers.vbgl ];
+    mainProgram = "ydump";
   };
 }
diff --git a/pkgs/development/tools/ocaml/findlib/default.nix b/pkgs/development/tools/ocaml/findlib/default.nix
index 44d9782f3ce5..5a9b08e20d0b 100644
--- a/pkgs/development/tools/ocaml/findlib/default.nix
+++ b/pkgs/development/tools/ocaml/findlib/default.nix
@@ -54,14 +54,12 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = "http://projects.camlcity.org/projects/findlib.html";
     description = "O'Caml library manager";
+    homepage = "http://projects.camlcity.org/projects/findlib.html";
     license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ maggesi vbmithr ];
+    mainProgram = "ocamlfind";
     platforms = ocaml.meta.platforms or [];
-    maintainers = [
-      lib.maintainers.maggesi
-      lib.maintainers.vbmithr
-    ];
   };
 }
 
diff --git a/pkgs/development/tools/ocaml/oasis/default.nix b/pkgs/development/tools/ocaml/oasis/default.nix
index d35ddbe210bf..c550bef7dda0 100644
--- a/pkgs/development/tools/ocaml/oasis/default.nix
+++ b/pkgs/development/tools/ocaml/oasis/default.nix
@@ -39,12 +39,11 @@ stdenv.mkDerivation {
   '';
 
   meta = with lib; {
-    homepage = "http://oasis.forge.ocamlcore.org/";
     description = "Configure, build and install system for OCaml projects";
+    homepage = "http://oasis.forge.ocamlcore.org/";
     license = licenses.lgpl21;
+    maintainers = with maintainers; [ vbgl maggesi ];
+    mainProgram = "oasis";
     platforms = ocaml.meta.platforms or [];
-    maintainers = with maintainers; [
-      vbgl maggesi
-    ];
   };
 }