diff --git a/storage/heap/heapdef.h b/storage/heap/heapdef.h
index 4fcdffb66b1..fa1f559e211 100644
--- a/storage/heap/heapdef.h
+++ b/storage/heap/heapdef.h
@@ -81,7 +81,6 @@ extern uchar *hp_search(HP_INFO *info,HP_KEYDEF *keyinfo,const uchar *key,
 		       uint nextflag);
 extern uchar *hp_search_next(HP_INFO *info, HP_KEYDEF *keyinfo,
 			    const uchar *key, HASH_INFO *pos);
-extern ulong hp_hashnr(HP_KEYDEF *keyinfo,const uchar *key);
 extern ulong hp_rec_hashnr(HP_KEYDEF *keyinfo,const uchar *rec);
 extern void hp_movelink(HASH_INFO *pos,HASH_INFO *next_link,
 			 HASH_INFO *newlink);
diff --git a/storage/heap/hp_hash.c b/storage/heap/hp_hash.c
index 38228c708bd..d90b7731600 100644
--- a/storage/heap/hp_hash.c
+++ b/storage/heap/hp_hash.c
@@ -19,6 +19,7 @@
 #include "heapdef.h"
 #include <m_ctype.h>
 
+static ulong hp_hashnr(HP_KEYDEF *keydef, const uchar *key);
 /*
   Find out how many rows there is in the given range
 
@@ -211,7 +212,7 @@ void hp_movelink(HASH_INFO *pos, HASH_INFO *next_link, HASH_INFO *newlink)
 
 	/* Calc hashvalue for a key */
 
-ulong hp_hashnr(register HP_KEYDEF *keydef, register const uchar *key)
+static ulong hp_hashnr(HP_KEYDEF *keydef, const uchar *key)
 {
   /*register*/ 
   ulong nr=1, nr2=4;