diff --git a/pkg/urbit/include/noun/manage.h b/pkg/urbit/include/noun/manage.h
index 5c522bcd17..89f50d6037 100644
--- a/pkg/urbit/include/noun/manage.h
+++ b/pkg/urbit/include/noun/manage.h
@@ -44,6 +44,11 @@
         void
         u3m_pave(c3_o nuu_o);
 
+      /* u3m_signal(): treat a nock-level exception as a signal interrupt.
+      */
+        void
+        u3m_signal(u3_noun sig_l);
+
       /* u3m_file(): load file, as atom, or bail.
       */
         u3_noun
diff --git a/pkg/urbit/noun/events.c b/pkg/urbit/noun/events.c
index 34dcb34cfc..a8795b3c0b 100644
--- a/pkg/urbit/noun/events.c
+++ b/pkg/urbit/noun/events.c
@@ -277,7 +277,7 @@ u3e_fault(void* adr_v, c3_i ser_i)
   return 1;
 
 fail:
-  u3m_bail(c3__meme);
+  u3m_signal(c3__meme);
 #undef center_guard_page
 }