diff --git a/storm/Handle.hpp b/storm/Handle.hpp
index b4264d2..5192138 100644
--- a/storm/Handle.hpp
+++ b/storm/Handle.hpp
@@ -1,10 +1,12 @@
 #ifndef STORM_HANDLE_HPP
 #define STORM_HANDLE_HPP
 
-#if !defined(DECLARE_HANDLE)
-#define DECLARE_HANDLE(name) \
-    struct name##__;         \
+#define DECLARE_STORM_HANDLE(name)          \
+    struct name##__ { int32_t unused; };    \
+    typedef struct name##__* name
+
+#define DECLARE_STORM_CHILD_HANDLE(name, super)             \
+    struct name##__ : public super##__ { int32_t unused; }; \
     typedef struct name##__* name
-#endif
 
 #endif
diff --git a/storm/region/Types.hpp b/storm/region/Types.hpp
index 123822a..7fea81e 100644
--- a/storm/region/Types.hpp
+++ b/storm/region/Types.hpp
@@ -4,9 +4,9 @@
 #include "storm/Handle.hpp"
 #include <cstdint>
 
-DECLARE_HANDLE(HSRGN);
+DECLARE_STORM_HANDLE(HSRGN);
 
-DECLARE_HANDLE(HLOCKEDRGN);
+DECLARE_STORM_HANDLE(HLOCKEDRGN);
 
 struct RECTF {
     float left;
diff --git a/test/Handle.cpp b/test/Handle.cpp
new file mode 100644
index 0000000..9778237
--- /dev/null
+++ b/test/Handle.cpp
@@ -0,0 +1,23 @@
+#include "storm/Handle.hpp"
+#include "test/Test.hpp"
+
+TEST_CASE("DECLARE_STORM_HANDLE", "[handle]") {
+    SECTION("declares handle") {
+        DECLARE_STORM_HANDLE(HTEST);
+        HTEST test;
+
+        SUCCEED();
+    }
+}
+
+TEST_CASE("DECLARE_STORM_CHILD_HANDLE", "[handle]") {
+    SECTION("declares child handle") {
+        DECLARE_STORM_HANDLE(HPARENT);
+        DECLARE_STORM_CHILD_HANDLE(HCHILD, HPARENT);
+
+        HPARENT parent;
+        HCHILD child;
+
+        SUCCEED();
+    }
+}