diff --git a/Makefile b/Makefile
index ce8af42..0f90d34 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@ test-all:
 	@bats -T $(shell find . -name test.bats| sort )
 
 test-changed:
-	@bats -T $(shell git diff --name-status ${BASE_REF} | awk '{print $2}' | xargs dirname | uniq | grep -v -E '^(\.|lib)' | xargs -I% echo -n " %/test.bats" )
+	@bats -T $(shell git diff --name-status ${BASE_REF} | awk '{ print $$2}' | xargs -I% dirname % | grep -v -E '(^\.|lib)' | xargs -I% echo "%/test.bats")
 
 update-tests:
 	@find . -maxdepth 1 -type d -not -path '*/\.*' -not -path '.' -not -path './lib' -exec cp ./lib/test.bats.example {}/test.bats \;