diff --git a/examples/ruby/devenv.yaml b/examples/ruby/devenv.yaml
index fa52210ad..351d48fed 100644
--- a/examples/ruby/devenv.yaml
+++ b/examples/ruby/devenv.yaml
@@ -4,3 +4,5 @@ inputs:
     inputs:
       nixpkgs:
         follows: nixpkgs
+clean:
+  enabled: true
\ No newline at end of file
diff --git a/examples/rubyonrails/devenv.yaml b/examples/rubyonrails/devenv.yaml
index fa52210ad..351d48fed 100644
--- a/examples/rubyonrails/devenv.yaml
+++ b/examples/rubyonrails/devenv.yaml
@@ -4,3 +4,5 @@ inputs:
     inputs:
       nixpkgs:
         follows: nixpkgs
+clean:
+  enabled: true
\ No newline at end of file