diff --git a/pkgs/development/tools/build-managers/gradle/update-deps.nix b/pkgs/development/tools/build-managers/gradle/update-deps.nix
index 8dc36c3bd7b42..0df8635f7a7a7 100644
--- a/pkgs/development/tools/build-managers/gradle/update-deps.nix
+++ b/pkgs/development/tools/build-managers/gradle/update-deps.nix
@@ -120,7 +120,7 @@ lib.makeOverridable (
       MITM_CACHE_PID="$!"
       # wait for mitm-cache to fully start
       for i in {0..20}; do
-        ps -p "$MITM_CACHE_PID" >/dev/null || (echo "Failed to start mitm-cache" && exit 1)
+        ps -p "$MITM_CACHE_PID" -o comm= >/dev/null || (echo "Failed to start mitm-cache" && exit 1)
         curl -so/dev/null "$MITM_CACHE_ADDRESS" && break
         [[ "$i" -eq 20 ]] && (echo "Failed to start mitm-cache" && exit 1)
         sleep 0.5