diff --git a/packages/google-cloud-monitoring/synth.py b/packages/google-cloud-monitoring/synth.py
index 6f8a59072db..cec6ebf5a0a 100644
--- a/packages/google-cloud-monitoring/synth.py
+++ b/packages/google-cloud-monitoring/synth.py
@@ -30,8 +30,8 @@
     version,
     generator_args={
         "grpc-service-config": f"google/monitoring/{version}/monitoring_grpc_service_config.json",
-        "package-name": f"@google-cloud/monitoring",
-        "main-service": f"monitoring"
+        "package-name": "@google-cloud/monitoring",
+        "main-service": "monitoring"
     },
     proto_path=f'/google/monitoring/{version}',
     extra_proto_files=['google/cloud/common_resources.proto']