diff --git a/openbr/plugins/meta.cpp b/openbr/plugins/meta.cpp
index f19e4cc..4c7eee1 100644
--- a/openbr/plugins/meta.cpp
+++ b/openbr/plugins/meta.cpp
@@ -418,6 +418,8 @@ public:
 private:
     void init()
     {
+        if (!transform) return;
+
         trainable = transform->trainable;
         if (!cache.isEmpty()) return;