diff --git a/src/proto/arabic.pro b/src/proto/arabic.pro
index a004ef9..c93e246 100644
--- a/src/proto/arabic.pro
+++ b/src/proto/arabic.pro
@@ -1,3 +1,5 @@
 /* arabic.c */
+int arabic_maycombine(int two);
+int arabic_combine(int one, int two);
 int arabic_shape(int c, int *ccp, int *c1p, int prev_c, int prev_c1, int next_c);
 /* vim: set ft=c : */
diff --git a/src/proto/mbyte.pro b/src/proto/mbyte.pro
index 5b97d55..b9f0439 100644
--- a/src/proto/mbyte.pro
+++ b/src/proto/mbyte.pro
@@ -25,8 +25,6 @@
 int utf_ptr2char(char_u *p);
 int mb_ptr2char_adv(char_u **pp);
 int mb_cptr2char_adv(char_u **pp);
-int arabic_combine(int one, int two);
-int arabic_maycombine(int two);
 int utf_composinglike(char_u *p1, char_u *p2);
 int utfc_ptr2char(char_u *p, int *pcc);
 int utfc_ptr2char_len(char_u *p, int *pcc, int maxlen);