diff --git a/js/src/jscompartment.cpp b/js/src/jscompartment.cpp
index 926c7e3c86..a7dc6bc5f0 100644
--- a/js/src/jscompartment.cpp
+++ b/js/src/jscompartment.cpp
@@ -106,7 +106,7 @@ JSCompartment::~JSCompartment()
     js_delete(debugEnvs);
     js_delete(objectMetadataTable);
     js_delete(lazyArrayBuffers);
-    js_delete(nonSyntacticLexicalEnvironments_),
+    js_delete(nonSyntacticLexicalEnvironments_);
     js_free(enumerators);
 
     runtime_->numCompartments--;