diff --git a/tutorials/multiphase/interFoam/ras/damBreak/system/fvSolution b/tutorials/multiphase/interFoam/ras/damBreak/system/fvSolution
index 9b92547ce..21c906b06 100644
--- a/tutorials/multiphase/interFoam/ras/damBreak/system/fvSolution
+++ b/tutorials/multiphase/interFoam/ras/damBreak/system/fvSolution
@@ -17,6 +17,8 @@ FoamFile
 
 solvers
 {
+    rho
+    {}
     pcorr
     {
         solver          PCG;