diff --git a/dune/tectonic/spatial-solving/tnnmg/linesearchsolver.hh b/dune/tectonic/spatial-solving/tnnmg/linesearchsolver.hh
index 695c3e9a5d44d3bbc95dcae7d868fec2aa2c54a1..079ea54ac37de89ae707341c8eb82d5efff25c46 100644
--- a/dune/tectonic/spatial-solving/tnnmg/linesearchsolver.hh
+++ b/dune/tectonic/spatial-solving/tnnmg/linesearchsolver.hh
@@ -41,7 +41,7 @@ class LineSearchSolver
     }
 
     int bisectionsteps = 0;
-    const Bisection globalBisection; //(0.0, 1.0, 0.0, 0.0);
+    const Bisection globalBisection(0.0, 1.0, 0.0, 0.0);
 
     x = globalBisection.minimize(f, f.scaling(), 0.0, bisectionsteps);
     //std::cout << "x: " << x << "scaling: " << f.scaling();