diff --git a/src/localtime.c b/src/localtime.c
index 186c8e3c6..3f59a3331 100644
--- a/src/localtime.c
+++ b/src/localtime.c
@@ -50,7 +50,7 @@
  * designed to work with what time(NULL) may return, and to support Redis
  * logging of the dates, it's not really a complete implementation. */
 static int is_leap_year(time_t year) {
-    if (year % 4) return 0;         /* A year divisible by 4 is not leap. */
+    if (year % 4) return 0;         /* A year not divisible by 4 is not leap. */
     else if (year % 100) return 1;  /* If div by 4 and not 100 is surely leap. */
     else if (year % 400) return 0;  /* If div by 100 *and* 400 is not leap. */
     else return 1;                  /* If div by 100 and not by 400 is leap. */