diff --git a/opm/core/simulator/AdaptiveSimulatorTimer.cpp b/opm/core/simulator/AdaptiveSimulatorTimer.cpp
index fd906eec..9b2737d7 100644
--- a/opm/core/simulator/AdaptiveSimulatorTimer.cpp
+++ b/opm/core/simulator/AdaptiveSimulatorTimer.cpp
@@ -96,7 +96,6 @@ namespace Opm
 
     double AdaptiveSimulatorTimer::currentStepLength () const
     {
-        assert( ! done () );
         return dt_;
     }