diff --git a/include/cantera/thermo/IdealSolnGasVPSS.h b/include/cantera/thermo/IdealSolnGasVPSS.h
index 65ea43401..072bbc23d 100644
--- a/include/cantera/thermo/IdealSolnGasVPSS.h
+++ b/include/cantera/thermo/IdealSolnGasVPSS.h
@@ -126,8 +126,6 @@ public:
     /// @name  Partial Molar Properties of the Solution
     //@{
 
-    void getChemPotentials_RT(doublereal* mu) const;
-
     virtual void getChemPotentials(doublereal* mu) const;
     virtual void getPartialMolarEnthalpies(doublereal* hbar) const;
     virtual void getPartialMolarEntropies(doublereal* sbar) const;
diff --git a/src/thermo/IdealSolnGasVPSS.cpp b/src/thermo/IdealSolnGasVPSS.cpp
index c20df136e..9099db53f 100644
--- a/src/thermo/IdealSolnGasVPSS.cpp
+++ b/src/thermo/IdealSolnGasVPSS.cpp
@@ -193,14 +193,6 @@ void IdealSolnGasVPSS::getActivityCoefficients(doublereal* ac) const
 
 // ---- Partial Molar Properties of the Solution -----------------
 
-void IdealSolnGasVPSS::getChemPotentials_RT(doublereal* muRT) const
-{
-    getChemPotentials(muRT);
-    for (size_t k = 0; k < m_kk; k++) {
-        muRT[k] *= 1.0 / RT();
-    }
-}
-
 void IdealSolnGasVPSS::getChemPotentials(doublereal* mu) const
 {
     getStandardChemPotentials(mu);