diff --git a/nixos/modules/virtualisation/google-compute-image.nix b/nixos/modules/virtualisation/google-compute-image.nix
index a03c45bfeff..a3dd3bd55d1 100644
--- a/nixos/modules/virtualisation/google-compute-image.nix
+++ b/nixos/modules/virtualisation/google-compute-image.nix
@@ -261,7 +261,7 @@ in
     "kernel.kptr_restrict" = mkDefault "1";
 
     # set ptrace protections
-    "kernel.yama.ptrace_scope" = mkDefault "1";
+    "kernel.yama.ptrace_scope" = mkOverride 500 "1";
 
     # set perf only available to root
     "kernel.perf_event_paranoid" = mkDefault "2";