diff --git a/pkgs/by-name/ge/gerbolyze/package.nix b/pkgs/by-name/ge/gerbolyze/package.nix
index d0d72ba07198..507203064e72 100644
--- a/pkgs/by-name/ge/gerbolyze/package.nix
+++ b/pkgs/by-name/ge/gerbolyze/package.nix
@@ -81,7 +81,7 @@ python3Packages.buildPythonApplication rec {
   ];
 
   makeWrapperArgs = [
-    "--prefix PATH: ${
+    "--prefix PATH : ${
       lib.makeBinPath [
         resvg
         svg-flatten