diff --git a/apps/py_sems/sip/PySemsB2ABDialog.sip b/apps/py_sems/sip/PySemsB2ABDialog.sip
index 90b47438..71777a2b 100644
--- a/apps/py_sems/sip/PySemsB2ABDialog.sip
+++ b/apps/py_sems/sip/PySemsB2ABDialog.sip
@@ -79,6 +79,7 @@ class B2ABEvent
 %TypeHeaderCode
 #include "../../../core/AmB2ABSession.h"
 %End
+public:
   B2ABEvent(int /* ev_id */);
 };