diff --git a/include/ctype.h b/include/ctype.h
index 17cbafe9f..103f6cc22 100644
--- a/include/ctype.h
+++ b/include/ctype.h
@@ -84,7 +84,7 @@ unsigned char __fastcall__ toascii (unsigned char c);
 
 
 
-/* When inlining-of-known-functions is enabled, overload most of the above
+/* When --eagerly-inline-funcs is enabled, overload most of the above
 ** functions by macroes. The function prototypes are available again after
 ** #undef'ing the macroes.
 ** Please note that the following macroes do NOT handle EOF correctly, as