diff --git a/Cantera/src/thermo/PDSS.cpp b/Cantera/src/thermo/PDSS.cpp
index 9544d5d19..1ff6dd56e 100644
--- a/Cantera/src/thermo/PDSS.cpp
+++ b/Cantera/src/thermo/PDSS.cpp
@@ -218,7 +218,7 @@ namespace Cantera {
   doublereal PDSS::
   enthalpy_mole() const {
     //m_tp->_updateThermo();
-    double m_temp = m_tp->temperature();
+    m_temp = m_tp->temperature();
     double RT = GasConstant * m_temp;
     return m_h0_RT_ptr[m_spindex] * RT;
   }