diff --git a/runtime/include/arch/x86_64/context.h b/runtime/include/arch/x86_64/context.h
index d3ed168..b033079 100644
--- a/runtime/include/arch/x86_64/context.h
+++ b/runtime/include/arch/x86_64/context.h
@@ -76,7 +76,7 @@ arch_context_restore(mcontext_t *active_context, struct arch_context *sandbox_co
 /**
  * Load a new sandbox that preempted an existing sandbox, restoring only the
  * instruction pointer and stack pointer registers.
- * I am unclear about setting the BP
+ * I am unclear about setting the BP. Issue #131
  * @param active_context - the context of the current worker thread
  * @param sandbox_context - the context that we want to restore
  */