diff --git a/winaccessibility/inc/AccObjectWinManager.hxx b/winaccessibility/inc/AccObjectWinManager.hxx
index 76e3e548fcdf..5c162dfed1ea 100644
--- a/winaccessibility/inc/AccObjectWinManager.hxx
+++ b/winaccessibility/inc/AccObjectWinManager.hxx
@@ -102,8 +102,8 @@ public:
 
     LRESULT Get_ToATInterface(HWND hWnd, long lParam, WPARAM wParam);
 
-    void  DecreaseState( css::accessibility::XAccessible* pXAcc,unsigned short pState );
-    void  IncreaseState( css::accessibility::XAccessible* pXAcc,unsigned short pState );
+    void  DecreaseState(css::accessibility::XAccessible* pXAcc, sal_Int64 nState);
+    void  IncreaseState(css::accessibility::XAccessible* pXAcc, sal_Int64 nState);
     void  UpdateState( css::accessibility::XAccessible* pXAcc );
 
     void  SetValue( css::accessibility::XAccessible* pXAcc, css::uno::Any pAny );
diff --git a/winaccessibility/source/service/AccObjectWinManager.cxx b/winaccessibility/source/service/AccObjectWinManager.cxx
index de527270a8e0..b0ee01525de9 100644
--- a/winaccessibility/source/service/AccObjectWinManager.cxx
+++ b/winaccessibility/source/service/AccObjectWinManager.cxx
@@ -796,11 +796,11 @@ AccObjectWinManager::CreateAccEventListener(XAccessible* pXAcc)
    * @param pState Changed state.
    * @return
    */
-void AccObjectWinManager::DecreaseState( XAccessible* pXAcc,unsigned short pState )
+void AccObjectWinManager::DecreaseState(XAccessible* pXAcc, sal_Int64 nState)
 {
     AccObject* pAccObj = GetAccObjByXAcc( pXAcc );
     if( pAccObj )
-        pAccObj->DecreaseState( pState );
+        pAccObj->DecreaseState(nState);
 }
 
 /**
@@ -811,11 +811,11 @@ void AccObjectWinManager::DecreaseState( XAccessible* pXAcc,unsigned short pStat
    * @param pState Changed state.
    * @return
    */
-void AccObjectWinManager::IncreaseState( XAccessible* pXAcc,unsigned short pState )
+void AccObjectWinManager::IncreaseState(XAccessible* pXAcc, sal_Int64 nState)
 {
     AccObject* pAccObj = GetAccObjByXAcc( pXAcc );
     if( pAccObj )
-        pAccObj->IncreaseState( pState );
+        pAccObj->IncreaseState(nState);
 }
 
 void  AccObjectWinManager::UpdateState( css::accessibility::XAccessible* pXAcc )