diff --git a/Makefile.packaging b/Makefile.packaging
index 5dfed03be..c8c781986 100644
--- a/Makefile.packaging
+++ b/Makefile.packaging
@@ -212,5 +212,5 @@ gpg-key: ## Generate GPG public key
 .PHONY: release
 release: ## Publish tarball to the UPLOAD_URL
 	echo "Publishing nginx-agent packages to ${UPLOAD_URL}"; \
-	curl -XPOST -F "file=@$(PACKAGES_DIR)/$(TARBALL_NAME)" -H "Token: ${TOKEN}" ${UPLOAD_URL}; \
-	curl -XPOST -F "file=@$(GPG_PUBLIC_KEY)" -H "Token: ${TOKEN}" ${UPLOAD_URL}; \
+	curl --fail -XPOST -F "file=@$(PACKAGES_DIR)/$(TARBALL_NAME)" -H "Token: ${TOKEN}" ${UPLOAD_URL}; \
+	curl --fail -XPOST -F "file=@$(GPG_PUBLIC_KEY)" -H "Token: ${TOKEN}" ${UPLOAD_URL}; \