diff --git a/src/net/proxy.cpp b/src/net/proxy.cpp
index 712191d94..5c8e1686d 100644
--- a/src/net/proxy.cpp
+++ b/src/net/proxy.cpp
@@ -74,6 +74,8 @@ void proxy::resume() NOEXCEPT
 {
     BC_ASSERT_MSG(stranded(), "strand");
     paused_ = false;
+
+    // TODO: resume of an idle channel results in termination for invalid_magic.
     read_heading();
 }