diff --git a/pkgs/development/tools/misc/travis/default.nix b/pkgs/development/tools/misc/travis/default.nix
index 9e7d6e3c6064..a520c4deb342 100644
--- a/pkgs/development/tools/misc/travis/default.nix
+++ b/pkgs/development/tools/misc/travis/default.nix
@@ -2,7 +2,7 @@
 
 bundlerEnv {
   inherit ruby;
-  pName = "travis";
+  pname = "travis";
   gemdir = ./.;
 
   meta = with lib; {
diff --git a/pkgs/servers/monitoring/riemann-dash/default.nix b/pkgs/servers/monitoring/riemann-dash/default.nix
index c2d197e6b45a..2218edabe06b 100644
--- a/pkgs/servers/monitoring/riemann-dash/default.nix
+++ b/pkgs/servers/monitoring/riemann-dash/default.nix
@@ -2,7 +2,7 @@
 
 bundlerEnv {
   inherit ruby;
-  pName = "riemann-dash";
+  pname = "riemann-dash";
   gemdir = ./.;
 
   meta = with lib; {
diff --git a/pkgs/tools/system/foreman/default.nix b/pkgs/tools/system/foreman/default.nix
index 1c74724793d4..e97d71f5c84a 100644
--- a/pkgs/tools/system/foreman/default.nix
+++ b/pkgs/tools/system/foreman/default.nix
@@ -2,7 +2,7 @@
 
 bundlerEnv {
   inherit ruby;
-  pName = "foreman";
+  pname = "foreman";
   gemdir = ./.;
 
   meta = with lib; {
diff --git a/pkgs/tools/system/hiera-eyaml/default.nix b/pkgs/tools/system/hiera-eyaml/default.nix
index 029a975dc913..e0ff7d5ca8b4 100644
--- a/pkgs/tools/system/hiera-eyaml/default.nix
+++ b/pkgs/tools/system/hiera-eyaml/default.nix
@@ -2,7 +2,7 @@
 
 bundlerEnv {
   inherit ruby;
-  pName = "hiera-eyaml";
+  pname = "hiera-eyaml";
   gemdir = ./.;
 
   meta = with lib; {