diff --git a/usr.bin/xargs/strnsubst.c b/usr.bin/xargs/strnsubst.c
index 1fa35d453f49..4a2ecd5aa9a8 100644
--- a/usr.bin/xargs/strnsubst.c
+++ b/usr.bin/xargs/strnsubst.c
@@ -28,7 +28,7 @@ bool	strnsubst(char **, const char *, const char *, size_t);
  * If replstr is NULL, then that internally is changed to a nil-string, so
  * that we can still pretend to do somewhat meaningful substitution.
  *
- * Returns true if truncation was needed to do the replacement, true if
+ * Returns true if truncation was needed to do the replacement, false if
  * truncation was not required.
  */
 bool