1 files changed, 4 insertions, 2 deletions
diff --git a/runtime/js/40_signals.js b/runtime/js/40_signals.js
index 94171628f..71ead71c7 100644
--- a/runtime/js/40_signals.js
+++ b/runtime/js/40_signals.js
@@ -5,7 +5,9 @@
   const core = window.Deno.core;
   const ops = core.ops;
   const {
+    SafeSetIterator,
     Set,
+    SetPrototypeDelete,
     SymbolFor,
     TypeError,
   } = window.__bootstrap.primordials;
@@ -60,7 +62,7 @@
     checkSignalListenerType(listener);
 
     const sigData = getSignalData(signo);
-    sigData.listeners.delete(listener);
+    SetPrototypeDelete(sigData.listeners, listener);
 
     if (sigData.listeners.size === 0 && sigData.rid) {
       unbindSignal(sigData.rid);
@@ -73,7 +75,7 @@
       if (await pollSignal(sigData.rid)) {
         return;
       }
-      for (const listener of sigData.listeners) {
+      for (const listener of new SafeSetIterator(sigData.listeners)) {
         listener();
       }
     }