diff --git a/include/def.h b/include/def.h
index ad90dd1..0cac91c 100644
--- a/include/def.h
+++ b/include/def.h
@@ -58,7 +58,7 @@ constexpr auto impl(T* const (& p)) -> IsImplComfortable<T> {
 
 template <typename T>
 constexpr auto clear_impl(T* p) -> IsImplComfortable<T, void> {
-    impl(p)->~T();
+    if (p != nullptr) impl(p)->~T();
 }
 
 template <typename T, typename... P>
diff --git a/src/ipc.cpp b/src/ipc.cpp
index 4536569..2a90285 100644
--- a/src/ipc.cpp
+++ b/src/ipc.cpp
@@ -51,8 +51,8 @@ using cache_t = mem::vector<byte_t>;
 template <std::size_t N>
 cache_t make_cache(byte_t const (& data)[N]) {
     return {
-        static_cast<buff_t::value_type const *>(data),
-        static_cast<buff_t::value_type const *>(data) + N
+        static_cast<cache_t::value_type const *>(data),
+        static_cast<cache_t::value_type const *>(data) + N
     };
 }