1 files changed, 1 insertions, 1 deletions
diff --git a/fticks.c b/fticks.c
index 8d41c4f..ee83b91 100644
--- a/fticks.c
+++ b/fticks.c
@@ -145,7 +145,7 @@ fticks_hashmac(const uint8_t *in,
     uint8_t *p = NULL;
     int i;
 
-    in_copy = calloc(1, strlen(in) + 1);
+    in_copy = calloc(1, strlen((const char *) in) + 1);
     if (in_copy == NULL)
 	return -ENOMEM;