diff --git a/Makefile b/Makefile
index 788ed27..898932c 100644
--- a/Makefile
+++ b/Makefile
@@ -20,7 +20,7 @@ codegen:
 test: test-unit test-coverage
 
 test-unit:
-	go test . -coverprofile=coverage.out
+	go test ./... -coverprofile=coverage.out
 
 test-coverage:
 	go tool gcov2lcov -infile coverage.out > lcov.info