--- a/mcabber/mcabber/screen.h	Mon Feb 17 23:40:49 2020 +0000
+++ b/mcabber/mcabber/screen.h	Mon Feb 17 23:44:03 2020 +0000
@@ -16,7 +16,7 @@
 # include <panel.h>
 #endif
 
-gboolean vi_mode;
+extern gboolean vi_mode;
 
 #if defined(WITH_ENCHANT) || defined(WITH_ASPELL)
 void spellcheck_init(void);