diff --git a/pkgs/development/ruby-modules/bundler-env/functions.nix b/pkgs/development/ruby-modules/bundler-env/functions.nix
index 5a51f4d8208..d9f02324cc2 100644
--- a/pkgs/development/ruby-modules/bundler-env/functions.nix
+++ b/pkgs/development/ruby-modules/bundler-env/functions.nix
@@ -4,12 +4,10 @@ rec {
 
   platformMatches = {rubyEngine, version, ...}@ruby: attrs: (
   !(attrs ? "platforms") ||
-  builtins.trace "ruby engine: ${rubyEngine}"
-  builtins.trace "ruby version ${version.majMin}"
+  builtins.length attrs.platforms == 0 ||
     builtins.any (platform:
-    builtins.trace "checking: ${platform.engine}/${platform.version}"
       platform.engine == rubyEngine &&
-        (!(platform ? "version") || platform.version == version.majMin)
+        (!(platform ? "version") || platform.version.majMin == version.majMin)
     ) attrs.platforms
   );
 
diff --git a/pkgs/development/ruby-modules/bundler-env/test.nix b/pkgs/development/ruby-modules/bundler-env/test.nix
index af3d81d483d..c3de862f153 100644
--- a/pkgs/development/ruby-modules/bundler-env/test.nix
+++ b/pkgs/development/ruby-modules/bundler-env/test.nix
@@ -41,6 +41,9 @@ let
     ( let gemSet = { test = { groups = ["x" "y"]; }; };
       in
       test.run "Filter matches a group" gemSet (set: functions.filterGemset {inherit ruby; groups = ["y" "z"];} set == gemSet))
+    ( let gemSet = { test = { platforms = []; }; };
+      in
+      test.run "Filter matches empty platforms list" gemSet (set: functions.filterGemset {inherit ruby; groups = [];} set == gemSet))
     ( let gemSet = { test = { platforms = [{engine = ruby.rubyEngine; version = ruby.version;}]; }; };
       in
       test.run "Filter matches on platform" gemSet (set: functions.filterGemset {inherit ruby; groups = [];} set == gemSet))