diff --git a/cache.h b/cache.h
index 04cabaac11..6a4eb221b3 100644
--- a/cache.h
+++ b/cache.h
@@ -1462,7 +1462,6 @@ int hex_to_bytes(unsigned char *binary, const char *hex, size_t len);
  *   printf("%s -> %s", sha1_to_hex(one), sha1_to_hex(two));
  */
 char *hash_to_hex_algop_r(char *buffer, const unsigned char *hash, const struct git_hash_algo *);
-char *sha1_to_hex_r(char *out, const unsigned char *sha1);
 char *oid_to_hex_r(char *out, const struct object_id *oid);
 char *hash_to_hex_algop(const unsigned char *hash, const struct git_hash_algo *);	/* static buffer result! */
 char *sha1_to_hex(const unsigned char *sha1);						/* same static buffer */
diff --git a/contrib/coccinelle/object_id.cocci b/contrib/coccinelle/object_id.cocci
index 3e536a9834..6c0d21d8e2 100644
--- a/contrib/coccinelle/object_id.cocci
+++ b/contrib/coccinelle/object_id.cocci
@@ -25,23 +25,6 @@ struct object_id *OIDPTR;
 + oid_to_hex(OIDPTR)
   ...>}
 
-@@
-expression E;
-struct object_id OID;
-@@
-- sha1_to_hex_r(E, OID.hash)
-+ oid_to_hex_r(E, &OID)
-
-@@
-identifier f != oid_to_hex_r;
-expression E;
-struct object_id *OIDPTR;
-@@
-   f(...) {<...
-- sha1_to_hex_r(E, OIDPTR->hash)
-+ oid_to_hex_r(E, OIDPTR)
-  ...>}
-
 @@
 struct object_id OID;
 @@
diff --git a/hex.c b/hex.c
index 7850a8879d..8c3f06a192 100644
--- a/hex.c
+++ b/hex.c
@@ -90,11 +90,6 @@ char *hash_to_hex_algop_r(char *buffer, const unsigned char *hash,
 	return buffer;
 }
 
-char *sha1_to_hex_r(char *buffer, const unsigned char *sha1)
-{
-	return hash_to_hex_algop_r(buffer, sha1, &hash_algos[GIT_HASH_SHA1]);
-}
-
 char *oid_to_hex_r(char *buffer, const struct object_id *oid)
 {
 	return hash_to_hex_algop_r(buffer, oid->hash, the_hash_algo);