diff --git a/backtrace_stackwalk.cpp b/backtrace_stackwalk.cpp
index 4ef5c475..de906098 100644
--- a/backtrace_stackwalk.cpp
+++ b/backtrace_stackwalk.cpp
@@ -8,7 +8,6 @@
 
 #include "backtrace.hpp"
 
-#include "debug.hpp"
 #include "types.hpp"
 #include "win32/except.hpp"
 #include "win32/windows.hpp"
diff --git a/debug_win32.cpp b/debug_win32.cpp
index a70e5623..fe9968c4 100644
--- a/debug_win32.cpp
+++ b/debug_win32.cpp
@@ -6,8 +6,6 @@
  * Copyright 2016 Danny Robson <danny@nerdcruft.net>
  */
 
-#include "debug.hpp"
-
 #include "log.hpp"
 #include "win32/except.hpp"
 #include "win32/windows.hpp"
diff --git a/io_win32.cpp b/io_win32.cpp
index 15bc39f0..4c8374c8 100644
--- a/io_win32.cpp
+++ b/io_win32.cpp
@@ -8,7 +8,6 @@
 
 #include "io_win32.hpp"
 
-#include "debug.hpp"
 #include "win32/except.hpp"
 #include "win32/windows.hpp"
 
diff --git a/thread/semaphore_win32.cpp b/thread/semaphore_win32.cpp
index 48d55d77..0b697305 100644
--- a/thread/semaphore_win32.cpp
+++ b/thread/semaphore_win32.cpp
@@ -11,8 +11,6 @@
 #include "../win32/except.hpp"
 #include "../win32/windows.hpp"
 
-#include "../debug.hpp"
-
 #include <winbase.h>
 
 using cruft::thread::semaphore;
diff --git a/win32/except.cpp b/win32/except.cpp
index 85b415b7..48f2bf64 100644
--- a/win32/except.cpp
+++ b/win32/except.cpp
@@ -11,8 +11,8 @@
 
 #include "windows.hpp"
 
+#include "../debug/assert.hpp"
 #include "../annotation.hpp"
-#include "../debug.hpp"
 
 #include <winerror.h>
 #include <winbase.h>
diff --git a/win32/registry.cpp b/win32/registry.cpp
index 21dcf626..7e160d0d 100644
--- a/win32/registry.cpp
+++ b/win32/registry.cpp
@@ -9,7 +9,6 @@
 #include "registry.hpp"
 
 #include "../cast.hpp"
-#include "../debug.hpp"
 #include "except.hpp"
 
 #include <winerror.h>