diff --git a/view.hpp b/view.hpp
index da349e9c..88717b3c 100644
--- a/view.hpp
+++ b/view.hpp
@@ -340,7 +340,7 @@ namespace cruft {
         [[nodiscard]] constexpr auto
         split (IndexT idx) const
         {
-            CHECK_LE (cruft::cast::lossless<std::size_t> (idx), size ());
+            CHECK_LIMIT (idx, IndexT {0u}, cruft::cast::lossless<IndexT> (size ()));
 
             auto last = m_begin;
             std::advance (last, idx);
@@ -479,6 +479,7 @@ namespace cruft {
         constexpr auto&&
         operator[] (size_t idx) noexcept
         {
+            CHECK_LIMIT (idx, 0u, size ());
             return *std::next (begin (), idx);
         }
 
@@ -486,6 +487,7 @@ namespace cruft {
         constexpr auto&&
         operator[] (size_t idx) const noexcept
         {
+            CHECK_LIMIT (idx, 0u, size ());
             return *std::next (begin (), idx);
         }