diff --git a/libc/system_properties/contexts.h b/libc/system_properties/contexts.h
index 9910ed1..5df9d96 100644
--- a/libc/system_properties/contexts.h
+++ b/libc/system_properties/contexts.h
@@ -39,6 +39,7 @@
 
   virtual bool Initialize(bool writable) = 0;
   virtual prop_area* GetPropAreaForName(const char* name) = 0;
+  virtual prop_area* GetSerialPropArea() = 0;
   virtual void ForEach(void (*propfn)(const prop_info* pi, void* cookie), void* cookie) = 0;
   virtual void ResetAccess() = 0;
   virtual void FreeAndUnmap() = 0;