diff --git a/Makefile.local b/Makefile.local
index 1181cea..dfd18cf 100644
--- a/Makefile.local
+++ b/Makefile.local
@@ -1,17 +1,17 @@
 POM_PATH=java/pom.xml
 
 java:
 	mvn -f $(POM_PATH) compile assembly:single
 
 java-doc:
 	mvn -f $(POM_PATH) javadoc:javadoc
 
 java-%:
 	mvn -f $(POM_PATH) $*
 
 protoc:
-	python -m grpc_tools.protoc -I. --python_out=. --mypy_out=. --grpc_python_out=. swh/graph/rpc/*.proto
+	python3 -m grpc_tools.protoc -I. --python_out=. --mypy_out=. --grpc_python_out=. swh/graph/rpc/*.proto
 
 clean-java: java-clean
 
 .PHONY: java clean-java