diff --git a/Solver/dgRungeKutta.cpp b/Solver/dgRungeKutta.cpp
index 683adc2695cbd41363180401e333df4b63d87aea..41eb3b325abc2c3a380d820a881d95624ab61f00 100644
--- a/Solver/dgRungeKutta.cpp
+++ b/Solver/dgRungeKutta.cpp
@@ -205,7 +205,9 @@ double dgRungeKutta::nonDiagonalRK(const dgConservationLaw *claw,
 }
 
 
-double dgRungeKutta::iterate43Multirate(const dgConservationLaw *claw, double dt, dgDofContainer *solution){
+double dgRungeKutta::iterate43Multirate(const dgConservationLaw *claw, double dt,
+                                        dgDofContainer *solution)
+{
   double A[4][4]={
      {0, 0, 0, 0},
      {1.0/2.0, 0, 0 ,0},
@@ -376,6 +378,8 @@ double dgRungeKutta::iterate43Multirate(const dgConservationLaw *claw, double dt
   delete []K;
   return solution->norm();
 */
+
+  return 0.;
 }