diff --git a/reactos/lib/oleaut32/safearray.c b/reactos/lib/oleaut32/safearray.c
index c0ebe274ff4..696b192bc1d 100644
--- a/reactos/lib/oleaut32/safearray.c
+++ b/reactos/lib/oleaut32/safearray.c
@@ -655,7 +655,7 @@ SAFEARRAY* WINAPI SafeArrayCreateEx(VARTYPE vt, UINT cDims, SAFEARRAYBOUND *rgsa
  * NOTES
  * See SafeArray.
  */
-SAFEARRAY* WINAPI SafeArrayCreateVector(VARTYPE vt, LONG lLbound, UINT cElements) /*MF: was ULONG */
+SAFEARRAY* WINAPI SafeArrayCreateVector(VARTYPE vt, LONG lLbound, UINT cElements)
 {
   TRACE("(%d->%s,%ld,%ld\n", vt, debugstr_vt(vt), lLbound, cElements);
     
@@ -683,7 +683,7 @@ SAFEARRAY* WINAPI SafeArrayCreateVector(VARTYPE vt, LONG lLbound, UINT cElements
  * NOTES
  * See SafeArray.
  */
-SAFEARRAY* WINAPI SafeArrayCreateVectorEx(VARTYPE vt, LONG lLbound, ULONG cElements, LPVOID pvExtra)
+SAFEARRAY* WINAPI SafeArrayCreateVectorEx(VARTYPE vt, LONG lLbound, UINT cElements, LPVOID pvExtra)
 {
   ULONG ulSize;
   IRecordInfo* iRecInfo = (IRecordInfo*)pvExtra;
diff --git a/reactos/w32api/include/oleauto.h b/reactos/w32api/include/oleauto.h
index e6c19f25a3a..7c2f364a026 100644
--- a/reactos/w32api/include/oleauto.h
+++ b/reactos/w32api/include/oleauto.h
@@ -226,6 +226,7 @@ WINOLEAUTAPI SafeArrayPutElement(SAFEARRAY*,long*,void*);
 WINOLEAUTAPI SafeArrayCopy(SAFEARRAY*,SAFEARRAY**);
 WINOLEAUTAPI SafeArrayPtrOfIndex(SAFEARRAY*,long*,void**);
 WINOLEAUTAPI_(SAFEARRAY*) SafeArrayCreateVector(VARTYPE,LONG,UINT);
+WINOLEAUTAPI_(SAFEARRAY*) SafeArrayCreateVectorEx(VARTYPE,LONG,UINT,LPVOID);
 WINOLEAUTAPI SafeArrayAllocDescriptorEx(VARTYPE,UINT,SAFEARRAY**);
 WINOLEAUTAPI SafeArrayGetVartype(SAFEARRAY*,VARTYPE*);
 WINOLEAUTAPI SafeArraySetRecordInfo(SAFEARRAY*,IRecordInfo*);