diff --git a/.gitignore b/.gitignore
index 14dc8f2..bdd50c9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,5 @@ vendor/*
 coverage.out
 count.out
 test
+profile.out
+tmp.out
diff --git a/Makefile b/Makefile
index b698ac0..b0d2e24 100644
--- a/Makefile
+++ b/Makefile
@@ -14,7 +14,12 @@ install: deps
 test:
 	echo "mode: count" > coverage.out
 	for d in $(TESTFOLDER); do \
-		$(GO) test -v -covermode=count -coverprofile=profile.out $$d; \
+		$(GO) test -v -covermode=count -coverprofile=profile.out $$d > tmp.out; \
+		cat tmp.out; \
+		if grep -q "^--- FAIL" tmp.out; then \
+			rm tmp.out; \
+			exit 1;\
+		fi; \
 		if [ -f profile.out ]; then \
 			cat profile.out | grep -v "mode:" >> coverage.out; \
 			rm profile.out; \