go: clean tutorial properly
diff --git a/tutorial/go/Makefile.am b/tutorial/go/Makefile.am
index 53c3980..a707d5d 100644
--- a/tutorial/go/Makefile.am
+++ b/tutorial/go/Makefile.am
@@ -49,7 +49,7 @@
 	GOPATH=`pwd` $(GO) run src/*.go -secure=true
 
 clean-local:
-	$(RM) -r gen-*
+	$(RM) -r gen-* src/shared src/tutorial src/git.apache.org go-tutorial calculator-remote
 
 EXTRA_DIST = \
 	src/client.go \