diff --git a/Parser/intrcheck.c b/Parser/intrcheck.c
index 827fcdd..aab940c 100644
--- a/Parser/intrcheck.c
+++ b/Parser/intrcheck.c
@@ -166,7 +166,7 @@
 
 /* intrpeek() is like intrcheck(), but it doesn't flush the events. The
 ** idea is that you call intrpeek() somewhere in a busy-wait loop, and return
-** None as soon as it returns 0. The mainloop will then pick up the cmd-. soon
+** None as soon as it returns 1. The mainloop will then pick up the cmd-. soon
 ** thereafter.
 */
 int