diff --git a/renderdoc/os/posix/android/android_hook.cpp b/renderdoc/os/posix/android/android_hook.cpp
index 6cddea7f0..ac4360211 100644
--- a/renderdoc/os/posix/android/android_hook.cpp
+++ b/renderdoc/os/posix/android/android_hook.cpp
@@ -25,6 +25,7 @@
 #include "os/posix/posix_hook.h"
 
 #include <dlfcn.h>
+#include <stddef.h>
 
 void PosixHookInit()
 {