diff --git a/src/thermophysicalModels/specie/equationOfState/rhoConst/rhoConst.H b/src/thermophysicalModels/specie/equationOfState/rhoConst/rhoConst.H
index ea71ed98a2..49a776c63e 100644
--- a/src/thermophysicalModels/specie/equationOfState/rhoConst/rhoConst.H
+++ b/src/thermophysicalModels/specie/equationOfState/rhoConst/rhoConst.H
@@ -86,7 +86,7 @@ public:
         // Fundamental properties
 
             //- Is the equation of state is incompressible i.e. rho != f(p)
-            static const bool incompressible = false;
+            static const bool incompressible = true;
 
             //- Is the equation of state is isochoric i.e. rho = const
             static const bool isochoric = true;