diff --git a/contrib/vhost-user-input/main.c b/contrib/vhost-user-input/main.c
index 3ea840cf44..d2de47cee7 100644
--- a/contrib/vhost-user-input/main.c
+++ b/contrib/vhost-user-input/main.c
@@ -211,7 +211,9 @@ static int vi_get_config(VuDev *dev, uint8_t *config, uint32_t len)
 {
     VuInput *vi = container_of(dev, VuInput, dev.parent);
 
-    g_return_val_if_fail(len <= sizeof(*vi->sel_config), -1);
+    if (len > sizeof(*vi->sel_config)) {
+        return -1;
+    }
 
     if (vi->sel_config) {
         memcpy(config, vi->sel_config, len);