diff --git a/reactos/dll/win32/rsaenh/rsaenh.c b/reactos/dll/win32/rsaenh/rsaenh.c
index 4f13c178a05..823468823d9 100644
--- a/reactos/dll/win32/rsaenh/rsaenh.c
+++ b/reactos/dll/win32/rsaenh/rsaenh.c
@@ -2324,7 +2324,7 @@ BOOL WINAPI RSAENH_CPDecrypt(HCRYPTPROV hProv, HCRYPTKEY hKey, HCRYPTHASH hHash,
         if (Final) {
             if (pbData[*pdwDataLen-1] &&
              pbData[*pdwDataLen-1] <= pCryptKey->dwBlockLen &&
-             pbData[*pdwDataLen-1] < *pdwDataLen) {
+             pbData[*pdwDataLen-1] <= *pdwDataLen) {
                 BOOL padOkay = TRUE;
 
                 /* check that every bad byte has the same value */