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-rw-r--r--refs.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/refs.h b/refs.h
index 7565decb0f..a79cb13cd9 100644
--- a/refs.h
+++ b/refs.h
@@ -5,7 +5,7 @@
* Calls the specified function for each ref file until it returns nonzero,
* and returns the value
*/
-extern int for_each_ref(int (*fn)(const char *path, unsigned char *sha1));
+extern int for_each_ref(int (*fn)(const char *path, const unsigned char *sha1));
/** Reads the refs file specified into sha1 **/
extern int get_ref_sha1(const char *ref, unsigned char *sha1);