diff --git a/src/context.h b/src/context.h
index 0f6816a..30d86b4 100644
--- a/src/context.h
+++ b/src/context.h
@@ -214,13 +214,6 @@ struct scope *apfl_closure_scope_for_func(apfl_ctx, struct scopes);
 
 struct apfl_io_writer apfl_get_output_writer(apfl_ctx);
 
-enum apfl_result apfl_do_protected(
-    apfl_ctx ctx,
-    void (*callback)(apfl_ctx, void *),
-    void *opaque,
-    void (*errcallback)(apfl_ctx, void *)
-);
-
 bool apfl_ctx_register_iterative_runner(apfl_ctx, apfl_iterative_runner);
 void apfl_ctx_unregister_iterative_runner(apfl_ctx, apfl_iterative_runner);