diff --git a/src/utils/dawn_uci.c b/src/utils/dawn_uci.c
index 8c4b7a3..15e1cf2 100644
--- a/src/utils/dawn_uci.c
+++ b/src/utils/dawn_uci.c
@@ -41,7 +41,7 @@ void uci_get_hostname(char* hostname)
         {
             len = dot - ptr.o->v.string;
         }
-        snprintf(hostname, HOST_NAME_MAX, "%.*s", len, ptr.o->v.string);
+        snprintf(hostname, HOST_NAME_MAX, "%.*s", (int)len, ptr.o->v.string);
     }
 
     uci_free_context(c);