diff --git a/examples/send-presence/send-presence.c b/examples/send-presence/send-presence.c
index b2051cb..d49728d 100644
--- a/examples/send-presence/send-presence.c
+++ b/examples/send-presence/send-presence.c
@@ -66,7 +66,7 @@ static int prompt(char* line, size_t size)
     char* nl;
     printf("\n> ");
     fflush(stdout);
-    res = fgets(line, size, stdin) ? 1 : 0;
+    res = fgets(line, (int)size, stdin) ? 1 : 0;
     line[size - 1] = 0;
     nl = strchr(line, '\n');
     if (nl) {