diff --git a/ebos/ecltransmissibility_impl.hh b/ebos/ecltransmissibility_impl.hh
index 58a6d9c72..00dc754ce 100644
--- a/ebos/ecltransmissibility_impl.hh
+++ b/ebos/ecltransmissibility_impl.hh
@@ -663,7 +663,7 @@ updateFromEclState_(bool global)
 
     for (auto it = trans.begin(); it != trans.end(); ++it, ++key, ++perform)
     {
-        if(perform)
+        if(*perform)
             fp->apply_tran(*key, *it);
     }