diff --git a/src/ui.c b/src/ui.c
index b758c4f..f89c145 100644
--- a/src/ui.c
+++ b/src/ui.c
@@ -3246,7 +3246,8 @@
 
 #if defined(FEAT_GUI_MOTIF) || defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MAC) \
 	|| defined(FEAT_GUI_ATHENA) || defined(FEAT_GUI_MSWIN) \
-	|| defined(FEAT_GUI_PHOTON) || defined(FEAT_BEVAL) || defined(PROTO)
+	|| defined(FEAT_GUI_PHOTON) || defined(FEAT_BEVAL) \
+	|| defined(FEAT_TERM_POPUP_MENU) || defined(PROTO)
 /*
  * Convert a virtual (screen) column to a character column.
  * The first column is one.