diff --git a/gio/tests/file.c b/gio/tests/file.c
index 2967406fb..0ef75dfca 100644
--- a/gio/tests/file.c
+++ b/gio/tests/file.c
@@ -2469,7 +2469,7 @@ test_copy_preserve_mode (void)
   /* Reset the umask after querying it above. There’s no way to query it without
    * changing it. */
   umask (current_umask);
-  g_test_message ("Current umask: %u", current_umask);
+  g_test_message ("Current umask: %u", (unsigned int) current_umask);
 
   for (i = 0; i < G_N_ELEMENTS (vectors); i++)
     {
diff --git a/glib/tests/mapping.c b/glib/tests/mapping.c
index bbd4de8b0..af5dd60c3 100644
--- a/glib/tests/mapping.c
+++ b/glib/tests/mapping.c
@@ -228,7 +228,7 @@ test_child_private (void)
   spawn_flags |= G_SPAWN_DO_NOT_REAP_CHILD;
 #endif
 
-  g_snprintf (pid, sizeof(pid), "%d", getpid ());
+  g_snprintf (pid, sizeof (pid), "%d", (int) getpid ());
   child_argv[0] = local_argv[0];
   child_argv[1] = "mapchild";
   child_argv[2] = pid;