diff --git a/src/arabic.c b/src/arabic.c
index 1c30598..818aae6 100644
--- a/src/arabic.c
+++ b/src/arabic.c
@@ -10,14 +10,13 @@
 /*
  * arabic.c: functions for Arabic language
  *
- * Included by main.c, when FEAT_ARABIC & FEAT_GUI is defined.
- *
- * --
- *
  * Author: Nadim Shaikli & Isam Bayazidi
- *
  */
 
+#include "vim.h"
+
+#if defined(FEAT_ARABIC) || defined(PROTO)
+
 static int  A_is_a(int cur_c);
 static int  A_is_s(int cur_c);
 static int  A_is_f(int cur_c);
@@ -1148,3 +1147,5 @@
 {
     return (c == a_HAMZA || c == a_s_HAMZA);
 }
+
+#endif /* FEAT_ARABIC */