diff --git a/idb_companion.xcodeproj/project.pbxproj b/idb_companion.xcodeproj/project.pbxproj
index e14c845f8..927f981de 100644
--- a/idb_companion.xcodeproj/project.pbxproj
+++ b/idb_companion.xcodeproj/project.pbxproj
@@ -148,6 +148,7 @@
 				"$(DERIVED_FILE_DIR)/$(INPUT_FILE_BASE).pb.swift",
 				"$(DERIVED_FILE_DIR)/$(INPUT_FILE_BASE).grpc.swift",
 			);
+			runOncePerArchitecture = 0;
 			script = "# Generate grpc code from .proto\nPATH=$PATH:/opt/homebrew/bin/:/usr/local/bin:$HOME/homebrew/bin/\n\nGRPC_PACKAGE_DIR=${BUILD_DIR%Build/*}SourcePackages/checkouts/grpc-swift\n\nprotoc \\\n  --proto_path=$INPUT_FILE_DIR \\\n  --swift_out=$DERIVED_FILE_DIR \\\n  --grpc-swift_out=$DERIVED_FILE_DIR \\\n  --grpc-swift_opt=Visibility=Public \\\n  --swift_opt=Visibility=Public \\\n  --plugin=protoc-gen-grpc-swift=$GRPC_PACKAGE_DIR/.build/release/protoc-gen-grpc-swift \\\n  --plugin=protoc-gen-swift=$GRPC_PACKAGE_DIR/.build/release/protoc-gen-swift \\\n  $INPUT_FILE_PATH\n";
 		};
 /* End PBXBuildRule section */