diff --git a/cache.h b/cache.h
index e1f0e182ad..6cae30f64c 100644
--- a/cache.h
+++ b/cache.h
@@ -1363,7 +1363,7 @@ extern int get_sha1_tree(const char *str, unsigned char *sha1);
 extern int get_sha1_treeish(const char *str, unsigned char *sha1);
 extern int get_sha1_blob(const char *str, unsigned char *sha1);
 extern void maybe_die_on_misspelt_object_name(const char *name, const char *prefix);
-extern int get_sha1_with_context(const char *str, unsigned flags, unsigned char *sha1, struct object_context *orc);
+extern int get_sha1_with_context(const char *str, unsigned flags, unsigned char *sha1, struct object_context *oc);
 
 extern int get_oid(const char *str, struct object_id *oid);
 
diff --git a/sha1_name.c b/sha1_name.c
index 8eec9f7c1b..179f214c9e 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -1638,9 +1638,9 @@ void maybe_die_on_misspelt_object_name(const char *name, const char *prefix)
 	get_sha1_with_context_1(name, GET_SHA1_ONLY_TO_DIE, prefix, sha1, &oc);
 }
 
-int get_sha1_with_context(const char *str, unsigned flags, unsigned char *sha1, struct object_context *orc)
+int get_sha1_with_context(const char *str, unsigned flags, unsigned char *sha1, struct object_context *oc)
 {
 	if (flags & GET_SHA1_FOLLOW_SYMLINKS && flags & GET_SHA1_ONLY_TO_DIE)
 		die("BUG: incompatible flags for get_sha1_with_context");
-	return get_sha1_with_context_1(str, flags, NULL, sha1, orc);
+	return get_sha1_with_context_1(str, flags, NULL, sha1, oc);
 }