diff --git a/bochs/cpu/vmexit.cc b/bochs/cpu/vmexit.cc
index 4368f5838..b0b3d6824 100755
--- a/bochs/cpu/vmexit.cc
+++ b/bochs/cpu/vmexit.cc
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////
-// $Id: vmexit.cc,v 1.8 2009-09-30 05:57:21 sshwarts Exp $
+// $Id: vmexit.cc,v 1.9 2009-10-10 13:45:39 sshwarts Exp $
 /////////////////////////////////////////////////////////////////////////
 //
 //   Copyright (c) 2009 Stanislav Shwartsman
@@ -303,9 +303,14 @@ void BX_CPU_C::VMexit_Event(bxInstruction_c *i, unsigned type, unsigned vector,
   if (vector == BX_DF_EXCEPTION)
     BX_CPU_THIS_PTR in_event = 0; // clear in_event indication on #DF
 
-  // qualifcation for debug exceptions similar to debug_trap field
-  if (vector == BX_DB_EXCEPTION) 
+  if (vector == BX_DB_EXCEPTION)  {
+    // qualifcation for debug exceptions similar to debug_trap field
     qualification = BX_CPU_THIS_PTR debug_trap & 0x0000600f;
+  }
+
+  // clear debug_trap field
+  BX_CPU_THIS_PTR debug_trap = 0;
+  BX_CPU_THIS_PTR inhibit_mask = 0;
 
   Bit32u interruption_info = vector | (type << 8);
   if (errcode_valid)