--- a/js/src/frontend/BinSource.cpp
+++ b/js/src/frontend/BinSource.cpp
@@ -330,17 +330,17 @@ BinASTParser::parseBlockStatementAux(con
             break;
           default:
             return raiseInvalidField("BlockStatement", field);
         }
     }
 
     // In case of absent optional fields, inject default values.
     if (!body)
-        body = factory_.newStatementList(tokenizer_->pos());
+        TRY_VAR(body, factory_.newStatementList(tokenizer_->pos()));
 
     MOZ_TRY_VAR(body, appendDirectivesToBody(body, directives));
 
     ParseNode* result;
     if (kind == BinKind::Program) {
         result = body;
     } else {
         TRY_DECL(bindings, NewLexicalScopeData(cx_, scope, alloc_, parseContext_));