diff --git a/CMakeLists.txt b/CMakeLists.txt
index f39cb76..58c5f66 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.20)
 include(cmake/color.cmake)
 
-set(BLT_VERSION 0.17.11)
+set(BLT_VERSION 0.17.12)
 set(BLT_TEST_VERSION 0.0.1)
 
 set(BLT_TARGET BLT)
diff --git a/include/blt/std/types.h b/include/blt/std/types.h
index 034b6f0..0416ec0 100644
--- a/include/blt/std/types.h
+++ b/include/blt/std/types.h
@@ -37,6 +37,7 @@ namespace blt
     using u64 = std::uint64_t;
     
     using size_t = std::size_t;
+    using ptrdiff_t = std::ptrdiff_t;
     using f32 = float;
     using f64 = double;
 #ifndef NO_BLT_NAMESPACE_ON_TYPES