1 files changed, 1 insertions, 0 deletions
diff --git a/coroutine/x86/Context.h b/coroutine/x86/Context.h
index 1d709fa98d..d98eaf6486 100644
--- a/coroutine/x86/Context.h
+++ b/coroutine/x86/Context.h
@@ -23,6 +23,7 @@ enum {COROUTINE_REGISTERS = 4};
 struct coroutine_context
 {
     void **stack_pointer;
+    void *argument;
 };
 
 typedef COROUTINE(* coroutine_start)(struct coroutine_context *from, struct coroutine_context *self) __attribute__((fastcall));