diff --git a/applications/solvers/heatTransfer/chtMultiRegionFoam/fluid/pEqn.H b/applications/solvers/heatTransfer/chtMultiRegionFoam/fluid/pEqn.H
index 4dec94266..8773c152b 100644
--- a/applications/solvers/heatTransfer/chtMultiRegionFoam/fluid/pEqn.H
+++ b/applications/solvers/heatTransfer/chtMultiRegionFoam/fluid/pEqn.H
@@ -70,12 +70,12 @@ constrainPressure(p_rgh, rho, U, phiHbyA, rhorAUf, MRF);
         }
     }
 
+    p = p_rgh + rho*gh;
+
     // Thermodynamic density update
     thermo.correctRho(psi*p - psip0);
 }
 
-p = p_rgh + rho*gh;
-
 // Update pressure time derivative if needed
 if (thermo.dpdt())
 {