diff --git a/pkgs/by-name/pd/pdk/Gemfile.lock b/pkgs/by-name/pd/pdk/Gemfile.lock
index 9cf412d55a74..c237755ad45f 100644
--- a/pkgs/by-name/pd/pdk/Gemfile.lock
+++ b/pkgs/by-name/pd/pdk/Gemfile.lock
@@ -58,7 +58,7 @@ GEM
     wisper (2.0.1)
 
 PLATFORMS
-  x86_64-linux
+  ruby
 
 DEPENDENCIES
   pdk (= 3.0.1)