diff --git a/README.md b/README.md
index 033992c..f3ca1ea 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@ cc src/modal.c -o bin/modal
 bin/modal examples/hello.modal
 	-v Print version
 	-q Quiet mode, no step printing
+	-p Print summary with refs count
 	-n Infinite mode, no rewrites limit
 ```