diff --git a/makefile b/makefile
index 359b8a7..2e7d487 100644
--- a/makefile
+++ b/makefile
@@ -11,7 +11,7 @@ format:
 test: bin/test
 	bin/niconst_test
 
-.PHONY: test clean
+.PHONY: clean format test
 
 bin/test: test/niconst_test.c
 	mkdir -p bin/test