diff --git a/dll/win32/oleaut32/vartype.c b/dll/win32/oleaut32/vartype.c
index eeef9922f20..9e271be5a23 100644
--- a/dll/win32/oleaut32/vartype.c
+++ b/dll/win32/oleaut32/vartype.c
@@ -3804,7 +3804,7 @@ HRESULT WINAPI VarCyAdd(const CY cyLeft, const CY cyRight, CY* pCyOut)
  *  Success: S_OK.
  *  Failure: DISP_E_OVERFLOW, if the value will not fit in the destination
  */
-HRESULT WINAPI VarCyMul(const CY cyLeft, const CY cyRight, CY* pCyOut)
+HRESULT WINAPI VarCyMul(const CY cyLeft, CY cyRight, CY* pCyOut)
 {
   double l,r;
   _VarR8FromCy(cyLeft, &l);