diff --git a/nixos/tests/all-tests.nix b/nixos/tests/all-tests.nix
index 27d5b79c95c4..4d5fc7884fe9 100644
--- a/nixos/tests/all-tests.nix
+++ b/nixos/tests/all-tests.nix
@@ -667,6 +667,7 @@ in {
   nginx-etag-compression = handleTest ./nginx-etag-compression.nix {};
   nginx-globalredirect = handleTest ./nginx-globalredirect.nix {};
   nginx-http3 = handleTest ./nginx-http3.nix {};
+  nginx-mime = handleTest ./nginx-mime.nix {};
   nginx-modsecurity = handleTest ./nginx-modsecurity.nix {};
   nginx-moreheaders = handleTest ./nginx-moreheaders.nix {};
   nginx-njs = handleTest ./nginx-njs.nix {};
diff --git a/nixos/tests/nginx-mime.nix b/nixos/tests/nginx-mime.nix
new file mode 100644
index 000000000000..157b9f13f142
--- /dev/null
+++ b/nixos/tests/nginx-mime.nix
@@ -0,0 +1,26 @@
+import ./make-test-python.nix (
+  { lib, pkgs, ... }:
+  {
+    name = "nginx-mime";
+    meta.maintainers = with pkgs.lib.maintainers; [ izorkin ];
+
+    nodes = {
+      server =
+        { pkgs, ... }:
+        {
+          services.nginx = {
+            enable = true;
+            virtualHosts."localhost" = { };
+          };
+        };
+    };
+
+    testScript = ''
+      server.start()
+      server.wait_for_unit("nginx")
+      # Check optimal size of types_hash
+      server.fail("journalctl --unit nginx --grep 'could not build optimal types_hash'")
+      server.shutdown()
+    '';
+  }
+)
diff --git a/pkgs/data/misc/mailcap/default.nix b/pkgs/data/misc/mailcap/default.nix
index b3560ecc505c..452e6f661abf 100644
--- a/pkgs/data/misc/mailcap/default.nix
+++ b/pkgs/data/misc/mailcap/default.nix
@@ -1,6 +1,7 @@
 { lib
 , stdenv
 , fetchurl
+, nixosTests
 
 # updater
 , git
@@ -44,6 +45,8 @@ stdenv.mkDerivation rec {
     exec nix-update --version "$VERSION" "$@"
   '';
 
+  passthru.tests.nginx-mime = nixosTests.nginx-mime;
+
   meta = with lib; {
     description = "Helper application and MIME type associations for file types";
     homepage = "https://pagure.io/mailcap";