diff --git a/scripts/image_signing/sign_gsc_firmware.sh b/scripts/image_signing/sign_gsc_firmware.sh
index 30e2795..6c0903a 100755
--- a/scripts/image_signing/sign_gsc_firmware.sh
+++ b/scripts/image_signing/sign_gsc_firmware.sh
@@ -598,6 +598,8 @@
 
   if [[ -d "${output}" ]]; then
     output="${output}/${base_name}.bin.prod"
+  else
+    output="${output/@CHIP@/${base_name}}"
   fi
 
   sign_gsc_firmware \