diff --git a/src/common/list.cpp b/src/common/list.cpp
index 64bfbcb9a9..3b51fce4ff 100644
--- a/src/common/list.cpp
+++ b/src/common/list.cpp
@@ -351,7 +351,7 @@ void wxListBase::DoDeleteNode(wxNodeBase *node)
     // free node's data
     if ( m_keyType == wxKEY_STRING )
     {
-        free(node->m_key.string);
+        wxDELETE(node->m_key.string);
     }
 
     if ( m_destroy )