diff --git a/components/debuggerintf/dbgintfdebuggerbase.pp b/components/debuggerintf/dbgintfdebuggerbase.pp
index 3aec0aaa27..eb90ebbcc9 100644
--- a/components/debuggerintf/dbgintfdebuggerbase.pp
+++ b/components/debuggerintf/dbgintfdebuggerbase.pp
@@ -3454,6 +3454,8 @@ end;
 procedure TDBGBreakPoint.DoStateChange(const AOldState: TDBGState);
 begin
   if Debugger.State <> dsStop then Exit;
+  SetValid(vsUnknown);
+
   if not (AOldState in [dsIdle, dsNone]) then Exit;
 
   BeginUpdate;