diff --git a/pkgs/development/pharo/vm/default.nix b/pkgs/development/pharo/vm/default.nix
index 939ff8ec750..d4f7a1f844a 100644
--- a/pkgs/development/pharo/vm/default.nix
+++ b/pkgs/development/pharo/vm/default.nix
@@ -43,7 +43,7 @@ stdenv.mkDerivation rec {
 
     cp * "$prefix/lib/pharo-vm"
 
-    cp -R "$resources"/* "$prefix/"
+    cp -R "$resources/"* "$prefix/"
 
     mkdir $prefix/bin