1 files changed, 1 insertions, 1 deletions
diff --git a/src/hash.c b/src/hash.c
index 066eacc..77b4159 100644
--- a/src/hash.c
+++ b/src/hash.c
@@ -27,7 +27,7 @@ usho do_hash(usho *b, int len)
 	return result;
 }
 
-usho do_hash_file(char *filename)
+usho do_hash_file(const char *filename)
 {
 	unsigned char buf[BSIZE];
 	FILE *fd = fopen(filename, "r");