diff --git a/include/cantera/thermo/IdealSolidSolnPhase.h b/include/cantera/thermo/IdealSolidSolnPhase.h
index 6e9d4692d..de87f8f73 100644
--- a/include/cantera/thermo/IdealSolidSolnPhase.h
+++ b/include/cantera/thermo/IdealSolidSolnPhase.h
@@ -343,15 +343,6 @@ public:
      */
     virtual doublereal referenceConcentration(int k) const;
 
-    /**
-     * Returns the log of the standard concentration of the kth species
-     *
-     * @param k Species number: this is a require parameter,
-     *          a change from the ThermoPhase base class, where it was
-     *          an optional parameter.
-     */
-    virtual doublereal logStandardConc(size_t k) const;
-
     //! Get the array of species activity coefficients
     /*!
      * @param ac output vector of activity coefficients. Length: m_kk
diff --git a/src/thermo/IdealSolidSolnPhase.cpp b/src/thermo/IdealSolidSolnPhase.cpp
index 051dc8b44..40a98eda9 100644
--- a/src/thermo/IdealSolidSolnPhase.cpp
+++ b/src/thermo/IdealSolidSolnPhase.cpp
@@ -228,27 +228,6 @@ doublereal IdealSolidSolnPhase::referenceConcentration(int k) const
     return 0.0;
 }
 
-doublereal IdealSolidSolnPhase::logStandardConc(size_t k) const
-{
-    _updateThermo();
-    double res;
-    switch (m_formGC) {
-    case 0:
-        res = 0.0;
-        break;
-    case 1:
-        res = log(1.0/m_speciesMolarVolume[k]);
-        break;
-    case 2:
-        res = log(1.0/m_speciesMolarVolume[m_kk-1]);
-        break;
-    default:
-        throw CanteraError("eosType", "Unknown type");
-        break;
-    }
-    return res;
-}
-
 void IdealSolidSolnPhase::getActivityCoefficients(doublereal* ac) const
 {
     for (size_t k = 0; k < m_kk; k++) {