diff --git a/src/gui.c b/src/gui.c
index 1953691..25662ef 100644
--- a/src/gui.c
+++ b/src/gui.c
@@ -5312,7 +5312,7 @@
 	i = msg_scroll;
 	if (down)
 	{
-	    (void)do_search(NULL, '/', '/', ga.ga_data, 1L, searchflags, NULL);
+	    (void)do_search(NULL, '/', '/', ga.ga_data, STRLEN(ga.ga_data), 1L, searchflags, NULL);
 	}
 	else
 	{
@@ -5320,7 +5320,7 @@
 	    // direction
 	    p = vim_strsave_escaped(ga.ga_data, (char_u *)"?");
 	    if (p != NULL)
-		(void)do_search(NULL, '?', '?', p, 1L, searchflags, NULL);
+		(void)do_search(NULL, '?', '?', p, STRLEN(p), 1L, searchflags, NULL);
 	    vim_free(p);
 	}