diff --git a/js/src/vm/HelperThreads.cpp b/js/src/vm/HelperThreads.cpp
index 55012158d384..be76be195d67 100644
--- a/js/src/vm/HelperThreads.cpp
+++ b/js/src/vm/HelperThreads.cpp
@@ -279,7 +279,7 @@ IonBuilderMatches(const CompilationSelector& selector, jit::IonBuilder* builder)
 
         bool match(JSScript* script)    { return script == builder_->script(); }
         bool match(Realm* realm)        { return realm == builder_->script()->realm(); }
-        bool match(Zone* zone)          { return zone == builder_->script()->zone(); }
+        bool match(Zone* zone)          { return zone == builder_->script()->zoneFromAnyThread(); }
         bool match(JSRuntime* runtime)  { return runtime == builder_->script()->runtimeFromAnyThread(); }
         bool match(AllCompilations all) { return true; }
         bool match(ZonesInState zbs)    {