diff --git a/net/irda/irias_object.c b/net/irda/irias_object.c
index a154b1d..56292ab 100644
--- a/net/irda/irias_object.c
+++ b/net/irda/irias_object.c
@@ -43,7 +43,7 @@
  *
  * Faster, check boundary... Jean II
  */
-static char *strndup(char *str, int max)
+static char *strndup(char *str, size_t max)
 {
 	char *new_str;
 	int len;