diff --git a/channels/chan_usbradio.c b/channels/chan_usbradio.c
index 729b24d3cb0051352fd7cc37304668237f7a7054..6610a314ac7de26cc0c049599acd76924a10acdb 100644
--- a/channels/chan_usbradio.c
+++ b/channels/chan_usbradio.c
@@ -2243,7 +2243,7 @@ static struct ast_channel *usbradio_request(const char *type, format_t format, c
 		return NULL;
 	}
 	if ((format & AST_FORMAT_SLINEAR) == 0) {
-		ast_log(LOG_NOTICE, "Format 0x%llx unsupported\n", format);
+		ast_log(LOG_NOTICE, "Format 0x%llx unsupported\n", (unsigned long long) format);
 		return NULL;
 	}
 	if (o->owner) {