diff --git a/Makefile b/Makefile
index 25129c8dd9ad3ee29323566565d6c123407c4b68..369c28fe2f75bf8be8bf6b6ec53b584d67127e5d 100644
--- a/Makefile
+++ b/Makefile
@@ -74,6 +74,10 @@ check-license:
 format: all
 	$(NINJA) -C build clang-format
 
+PHONY: iwyu
+iwyu: all
+	$(NINJA) -C build $@
+
 stresstest: test
 	./stresstest/stresstest.sh build/tests/simplest_fib_test