diff --git a/base/common/wide_integer_impl.h b/base/common/wide_integer_impl.h
index 5d757aed00e..f359647bddc 100644
--- a/base/common/wide_integer_impl.h
+++ b/base/common/wide_integer_impl.h
@@ -1127,12 +1127,8 @@ constexpr integer<Bits, Signed>::operator T() const noexcept
     using UnsignedT = std::make_unsigned_t<T>;
 
     UnsignedT res{};
-    for (unsigned i = 0; i < _impl::item_count; ++i)
-    {
-        if constexpr (sizeof(T) > sizeof(base_type))
-            res <<= (sizeof(base_type) * 8);
-        res += items[i];
-    }
+    for (unsigned i = 0; i < _impl::item_count && i <= sizeof(T) / sizeof(base_type); ++i)
+        res += UnsignedT(items[i]) << (sizeof(base_type) * 8 * i);
 
     return res;
 }