1 files changed, 1 insertions, 1 deletions
diff --git a/session.h b/session.h
index a848c126..8f5a77b2 100644
--- a/session.h
+++ b/session.h
@@ -177,7 +177,7 @@ class session_t : public xml::xpath_t::scope_t
   }
 
 #if 0
-#ifdef USE_BOOST_PYTHON
+#if defined(USE_BOOST_PYTHON)
   void option_import(value_t&) {
     python_import(optarg);
   }