diff --git a/src/ui.c b/src/ui.c
index 0ee61c2..b638c0d 100644
--- a/src/ui.c
+++ b/src/ui.c
@@ -1593,7 +1593,10 @@
 
 #if defined(FEAT_GUI) || defined(FEAT_MOUSE_GPM) \
 	|| defined(FEAT_XCLIPBOARD) || defined(VMS) \
-	|| defined(FEAT_SNIFF) || defined(FEAT_CLIENTSERVER) || defined(PROTO)
+	|| defined(FEAT_SNIFF) || defined(FEAT_CLIENTSERVER) \
+	|| (defined(FEAT_GUI) && (!defined(USE_ON_FLY_SCROLL) \
+		|| defined(FEAT_MENU))) \
+	|| defined(PROTO)
 /*
  * Add the given bytes to the input buffer
  * Special keys start with CSI.  A real CSI must have been translated to
@@ -1620,6 +1623,8 @@
 
 #if (defined(FEAT_XIM) && defined(FEAT_GUI_GTK)) \
 	|| (defined(FEAT_MBYTE) && defined(FEAT_MBYTE_IME)) \
+	|| (defined(FEAT_GUI) && (!defined(USE_ON_FLY_SCROLL) \
+		|| defined(FEAT_MENU))) \
 	|| defined(PROTO)
 /*
  * Add "str[len]" to the input buffer while escaping CSI bytes.