diff --git a/Makefile b/Makefile
index b7f0ce59cb7a1afd11bec0a51085dd27c6c74de6..31aece2a7357b174a9390ad3c8bb31f329e3cd4b 100644
--- a/Makefile
+++ b/Makefile
@@ -27,6 +27,5 @@ lint:
 test:
 	@make lint
 	@make build
-	$(WEBPACK) --bail --config playground.config.js
 
 .PHONY: build clean watch serve lint test
diff --git a/src/components/blocks.js b/src/components/blocks.js
index b154c8909a680675ef6e6a3179e008afc447b3d3..39882d5848986d0fd7a435d45b1fbebae20ba909 100644
--- a/src/components/blocks.js
+++ b/src/components/blocks.js
@@ -64,7 +64,7 @@ Blocks.defaultOptions = {
 };
 
 Blocks.defaultProps = {
-    onReceiveWorkspace: function (workspace) {},
+    onReceiveWorkspace: function () {},
     options: Blocks.defaultOptions
 };