diff --git a/include/GRI30.h b/include/GRI30.h
index a87945cd0..14d7faaf2 100644
--- a/include/GRI30.h
+++ b/include/GRI30.h
@@ -23,7 +23,7 @@ namespace Cantera {
             
             m_r = new XML_Node("-");
             m_r->build(fin);
-            m_ok = buildSolutionFromXML(*m_r, "gri30_hw", "phase", this, this);
+            m_ok = buildSolutionFromXML(*m_r, "gri30", "phase", this, this);
             if (!m_ok) throw CanteraError("GRI30",
                 "buildSolutionFromXML returned false");
         }
diff --git a/include/IdealGasMix.h b/include/IdealGasMix.h
index 949a8bf5b..d7ce7e75c 100644
--- a/include/IdealGasMix.h
+++ b/include/IdealGasMix.h
@@ -34,7 +34,9 @@ namespace Cantera {
             m_ok = buildSolutionFromXML(root, id, "phase", this, this);
         }
         
-        virtual ~IdealGasMix() {}
+        virtual ~IdealGasMix() { 
+ 	    delete m_r;
+	}
 
         bool operator!() { return !m_ok;}
         bool ready() { return m_ok; }