diff --git a/date.c b/date.c
index 0fc50cc..c5a4b39 100644
--- a/date.c
+++ b/date.c
@@ -549,7 +549,7 @@ struct tm *	tmp;
 		size += INCR;
 		cp = realloc(cp, size);
 	}
-	(void) fwrite(cp, 1, size, fp);
+	(void) fwrite(cp, 1, result, fp);
 	free(cp);
 }