diff --git a/src/mm.rs b/src/mm.rs
index 9c1151c..9a1590f 100644
--- a/src/mm.rs
+++ b/src/mm.rs
@@ -98,7 +98,7 @@ fn main() -> ExitCode {
 		}
 
 		let options = File::options()
-			/* truncate if -t is specified and append if -a is specified */
+			/* don’t truncate if -t is specified, append if -a is specified */
 			.truncate(t)
 			.append(a)
 			/* enable the ability to create and write to files */