diff --git a/dumux/decoupled/common/gridadapt.hh b/dumux/decoupled/common/gridadapt.hh
index 3102347a4e404ebee091d325b9582003404a0e53..8c1c97343e9daaffd80743c26216eea7935e8673 100644
--- a/dumux/decoupled/common/gridadapt.hh
+++ b/dumux/decoupled/common/gridadapt.hh
@@ -227,7 +227,7 @@ public:
                     {
                         ElementPointer outside = is->outside();
                         if ((problem_.grid().getMark(*outside) > 0)
-                            || outside.level()>eIt.level()))
+                            || outside.level() > eIt.level())
                         {
                             coarsenPossible = false;
                         }