diff --git a/build/docker/bin/Makefile b/build/docker/bin/Makefile
index 89898263..68df5a00 100644
--- a/build/docker/bin/Makefile
+++ b/build/docker/bin/Makefile
@@ -42,7 +42,7 @@ prepare-sources:
 prepare-vendor:
 	@ if [ "$(UPDATE_VENDOR)" -eq 1 ]; then \
 		echo "Updating vendor"; \
-		rm -rf $(BLOCKBOOK_SRC)/vendor && cd $(BLOCKBOOK_SRC) && dep ensure -vendor-only ; \
+		rm -rf $(BLOCKBOOK_SRC)/vendor && cd $(BLOCKBOOK_SRC) && rm -rf vendor?* && dep ensure -vendor-only ; \
 	else \
 		echo "Update of vendor not demanded, keeping version from src" ; \
 	fi