diff --git a/include/etl/pool.h b/include/etl/pool.h
index b06c9078..baf15a62 100644
--- a/include/etl/pool.h
+++ b/include/etl/pool.h
@@ -352,8 +352,9 @@ namespace etl
         // Initialise another one if necessary.
         if (items_initialised < MAX_SIZE)
         {
-          uintptr_t p = reinterpret_cast<uintptr_t>(p_buffer + (items_initialised * ITEM_SIZE));
-          *reinterpret_cast<uintptr_t*>(p) = p + ITEM_SIZE;
+          char* p = p_buffer + (items_initialised * ITEM_SIZE);
+          char* np = p + ITEM_SIZE;
+          *reinterpret_cast<char**>(p) = np;
           ++items_initialised;
         }
 
@@ -585,7 +586,7 @@ namespace etl
     // The pool element.
     union Element
     {
-      uintptr_t next;              ///< Pointer to the next free element.
+      char*     next;              ///< Pointer to the next free element.
       char      value[TYPE_SIZE_]; ///< Storage for value type.
       typename  etl::type_with_alignment<ALIGNMENT_>::type dummy; ///< Dummy item to get correct alignment.
     };
diff --git a/include/etl/version.h b/include/etl/version.h
index 5117d5ae..e678618d 100644
--- a/include/etl/version.h
+++ b/include/etl/version.h
@@ -39,7 +39,7 @@ SOFTWARE.
 
 #define ETL_VERSION_MAJOR 14
 #define ETL_VERSION_MINOR 34
-#define ETL_VERSION_PATCH  0
+#define ETL_VERSION_PATCH  1
 
 #define ETL_VERSION       ETL_STRINGIFY(ETL_VERSION_MAJOR) "." ETL_STRINGIFY(ETL_VERSION_MINOR) "." ETL_STRINGIFY(ETL_VERSION_PATCH)
 #define ETL_VERSION_W     ETL_STRINGIFY(ETL_VERSION_MAJOR) L"." ETL_STRINGIFY(ETL_VERSION_MINOR) L"." ETL_STRINGIFY(ETL_VERSION_PATCH)
diff --git a/support/Release notes.txt b/support/Release notes.txt
index ed723b61..589409aa 100644
--- a/support/Release notes.txt	
+++ b/support/Release notes.txt	
@@ -1,3 +1,7 @@
+===============================================================================
+14.34.1
+Fixed strict aliasing bug for -O3 optimisation in etl::pool
+
 ===============================================================================
 14.34.0
 Fix alternate STL utility.h for ARM6