diff --git a/pkgs/development/ruby-modules/bundler-app/default.nix b/pkgs/development/ruby-modules/bundler-app/default.nix
index 0a0b5818f375..e23c6d0a3234 100644
--- a/pkgs/development/ruby-modules/bundler-app/default.nix
+++ b/pkgs/development/ruby-modules/bundler-app/default.nix
@@ -100,5 +100,6 @@ runCommand basicEnv.name cmdArgs ''
         lib.optionalString (basicEnv.gemType == "git" || basicEnv.gemType == "url") "bundler/"
       }gems/${basicEnv.name} \( -wholename "*/man/*.$section" -o -wholename "*/man/man$section/*.$section" \) -print -execdir mkdir -p $mandir \; -execdir cp '{}' $mandir \;
     done
+    compressManPages "''${!outputMan}"
   ''}
 ''