diff --git a/src/option.c b/src/option.c
index 96d9df2..d547edc 100644
--- a/src/option.c
+++ b/src/option.c
@@ -7420,7 +7420,7 @@
 	errmsg = e_positive;
 	p_report = 1;
     }
-    if ((p_sj < 0 || p_sj >= Rows) && full_screen)
+    if ((p_sj < -100 || p_sj >= Rows) && full_screen)
     {
 	if (Rows != old_Rows)	/* Rows changed, just adjust p_sj */
 	    p_sj = Rows / 2;