diff --git a/pkgs/applications/graphics/image_optim/default.nix b/pkgs/applications/graphics/image_optim/default.nix
index ba437eab412..d88ed0d2c90 100644
--- a/pkgs/applications/graphics/image_optim/default.nix
+++ b/pkgs/applications/graphics/image_optim/default.nix
@@ -51,7 +51,7 @@ bundlerApp {
 
   postBuild = ''
     wrapProgram $out/bin/image_optim \
-      --prefix PATH : ${makeBinPath optionalDepsPath}
+      --prefix PATH : ${lib.escapeShellArg (makeBinPath optionalDepsPath)}
   '';
 
   passthru.updateScript = bundlerUpdateScript "image_optim";