diff --git a/src/winio.c b/src/winio.c
index 4132a190a40abc0dadbfaa6047a803f059d96329..d11655ad201c2af97c112329348d4abf4ae508ab 100644
--- a/src/winio.c
+++ b/src/winio.c
@@ -4183,7 +4183,8 @@ void dump_filestruct_reverse(void)
 #define CREDIT_LEN 53
 #define XLCREDIT_LEN 8
 
-/* Easter egg: Display credits.  Assume nodelay(edit) is FALSE. */
+/* Easter egg: Display credits.  Assume nodelay(edit) and scrollok(edit)
+ * are FALSE. */
 void do_credits(void)
 {
     bool old_more_space = ISSET(MORE_SPACE);