diff --git a/dumux/decoupled/2p/2pindices.hh b/dumux/decoupled/2p/2pindices.hh
index 699f1d5f4ff7bc226a5bbd71d49334458091a662..29da28f51f54574e55499eddbe47f31de56febe2 100644
--- a/dumux/decoupled/2p/2pindices.hh
+++ b/dumux/decoupled/2p/2pindices.hh
@@ -93,6 +93,7 @@ struct DecoupledTwoPIndices : public DecoupledTwoPCommonIndices
     // indices of the equations
     static const int contiWEqIdx = PVOffset + 0; //!< Index of the continuity equation of the wetting phase
     static const int pressureEqIdx = contiWEqIdx; //!< Index of the pressure equation (total mass balance)
+    static const int pressEqIdx = pressureEqIdx; //!< !!!! DEPRECATED: Use pressureEqIdx instead!!!!
     static const int contiNEqIdx = PVOffset + 1; //!< Index of the continuity equation of the non-wetting phase
     static const int satEqIdx = contiNEqIdx; //!< Index of the continuity equation of the non-wetting phase (saturation equation)
     static const int transportEqIdx = satEqIdx; //!< Index of the saturation transport equation
@@ -127,6 +128,7 @@ struct DecoupledTwoPIndices<DecoupledTwoPCommonIndices::pnSw, PVOffset>
     // indices of the equations
     static const int contiNEqIdx = PVOffset + 0; //!< Index of the continuity equation of the non-wetting phase
     static const int pressureEqIdx = contiNEqIdx; //!< Index of the pressure equation (total mass balance)
+    static const int pressEqIdx = pressureEqIdx; //!< !!!! DEPRECATED: Use pressureEqIdx instead!!!!
     static const int contiWEqIdx = PVOffset + 1; //!< Index of the continuity equation of the wetting phase
     static const int satEqIdx = contiWEqIdx; //!< Index of the continuity equation of the non-wetting phase (saturation equation)
     static const int transportEqIdx = satEqIdx; //!< Index of the saturation transport equation
@@ -163,6 +165,7 @@ struct DecoupledTwoPIndices<DecoupledTwoPCommonIndices::pwSw, PVOffset>
     // indices of the equations
     static const int contiWEqIdx = PVOffset + 0; //!< Index of the continuity equation of the wetting phase
     static const int pressureEqIdx = contiWEqIdx; //!< Index of the pressure equation (total mass balance)
+    static const int pressEqIdx = pressureEqIdx; //!< !!!! DEPRECATED: Use pressureEqIdx instead!!!!
     static const int contiNEqIdx = PVOffset + 1; //!< Index of the continuity equation of the non-wetting phase
     static const int satEqIdx = contiNEqIdx; //!< Index of the continuity equation of the non-wetting phase (saturation equation)
     static const int transportEqIdx = satEqIdx; //!< Index of the saturation transport equation
@@ -197,6 +200,7 @@ struct DecoupledTwoPIndices<DecoupledTwoPCommonIndices::pnSn, PVOffset>
     // indices of the equations
     static const int contiNEqIdx = PVOffset + 0; //!< Index of the continuity equation of the non-wetting phase
     static const int pressureEqIdx = contiNEqIdx; //!< Index of the pressure equation (total mass balance)
+    static const int pressEqIdx = pressureEqIdx; //!< !!!! DEPRECATED: Use pressureEqIdx instead!!!!
     static const int contiWEqIdx = PVOffset + 1; //!< Index of the continuity equation of the wetting phase
     static const int satEqIdx = contiWEqIdx; //!< Index of the continuity equation of the non-wetting phase (saturation equation)
     static const int transportEqIdx = satEqIdx; //!< Index of the saturation transport equation
@@ -231,6 +235,7 @@ struct DecoupledTwoPIndices<DecoupledTwoPCommonIndices::pGlobalSw, PVOffset> : p
 
     // indices of the equations
     static const int pressureEqIdx = PVOffset + 0; //!< Index of the pressure equation (total mass balance)
+    static const int pressEqIdx = pressureEqIdx; //!< !!!! DEPRECATED: Use pressureEqIdx instead!!!!
     static const int satEqIdx = PVOffset + 1; //!< Index of the continuity equation of the non-wetting phase (saturation equation)
     static const int transportEqIdx = satEqIdx; //!< Index of the saturation transport equation
 };
@@ -263,6 +268,7 @@ struct DecoupledTwoPIndices<DecoupledTwoPCommonIndices::pGlobalSn, PVOffset>
 
     // indices of the equations
     static const int pressureEqIdx = PVOffset + 0; //!< Index of the pressure equation (total mass balance)
+    static const int pressEqIdx = pressureEqIdx; //!< !!!! DEPRECATED: Use pressureEqIdx instead!!!!
     static const int satEqIdx = PVOffset + 1; //!< Index of the continuity equation of the non-wetting phase (saturation equation)
     static const int transportEqIdx = satEqIdx; //!< Index of the saturation transport equation
 };