diff --git a/README.md b/README.md
index fdb6d2b..ac8755d 100644
--- a/README.md
+++ b/README.md
@@ -284,7 +284,7 @@ In fact, squiggle.c does have a few functions for algebraic manipulations of sim
 
 #### Harsh compilation
 
-By default, I've enabled -Warn-all, -Warn-extra. However, these produce warnings for unused variables, some of which can sometimes be inocuous. For now, I'm suppressing these using a clever UNUSED macro. If you don't like that approach, you could add -Wno-unused-variable to your makefile and remove the macro. 
+By default, I've enabled -Warn-all, -Warn-extra. However, these produce warnings for unused variables, some of which can sometimes be inocuous. For now, I'm suppressing these using a clever UNUSED macro. If you don't like that approach, you could add -Wno-unused-parameter to your makefile and remove the macro. 
 
 #### Results of running clang-tidy