diff --git a/reactos/subsystems/win32/win32k/include/intgdi.h b/reactos/subsystems/win32/win32k/include/intgdi.h
index 0db72572b77..83a5eecae75 100644
--- a/reactos/subsystems/win32/win32k/include/intgdi.h
+++ b/reactos/subsystems/win32/win32k/include/intgdi.h
@@ -255,5 +255,7 @@ IntCreateCompatibleBitmap(PDC Dc,
 
 HDC STDCALL IntGdiGetDCState(HDC  hDC);
 
+WORD STDCALL IntGdiSetHookFlags(HDC hDC, WORD Flags);
+
 #endif /* _WIN32K_INTGDI_H */
 
diff --git a/reactos/subsystems/win32/win32k/ntuser/windc.c b/reactos/subsystems/win32/win32k/ntuser/windc.c
index bb633efdb2f..25565b4ccde 100644
--- a/reactos/subsystems/win32/win32k/ntuser/windc.c
+++ b/reactos/subsystems/win32/win32k/ntuser/windc.c
@@ -244,7 +244,7 @@ DceReleaseDC(DCE* dce, BOOL EndPaint)
    if (dce->DCXFlags & DCX_CACHE)
    {
       /* make the DC clean so that SetDCState doesn't try to update the vis rgn */
-      NtGdiSetHookFlags(dce->hDC, DCHF_VALIDATEVISRGN);
+      IntGdiSetHookFlags(dce->hDC, DCHF_VALIDATEVISRGN);
 
       if( dce->pProcess ) // Attempt to fix Dc_Attr problem.
         DC_SetOwnership( defaultDCstate, dce->pProcess);
diff --git a/reactos/subsystems/win32/win32k/objects/dc.c b/reactos/subsystems/win32/win32k/objects/dc.c
index 0f6eb5ef7c2..7e8d9b83078 100644
--- a/reactos/subsystems/win32/win32k/objects/dc.c
+++ b/reactos/subsystems/win32/win32k/objects/dc.c
@@ -2067,7 +2067,7 @@ NtGdiSelectObject(HDC  hDC, HGDIOBJ  hGDIObj)
 }
 
 WORD STDCALL
-NtGdiSetHookFlags(HDC hDC, WORD Flags)
+IntGdiSetHookFlags(HDC hDC, WORD Flags)
 {
   WORD wRet;
   DC *dc = DC_LockDc(hDC);