--- a/js/src/frontend/BinSource.cpp
+++ b/js/src/frontend/BinSource.cpp
@@ -1267,19 +1267,24 @@ ASTReader::parseExpression(SimpleTokenRe
             }
 
             out = Move(result);
             break;
         }
         case BinKind::directive_literal:
             // FIXME: Implement
             break;
-        case BinKind::null_literal:
-            // FIXME: Implement
+        case BinKind::null_literal: {
+            UniquePtr<ParseNode> result(new_<NullLiteral>(TokenPos()));
+            if (!result) {
+                return false;
+            }
+            out = Move(result);
             break;
+        }
         case BinKind::numeric_literal:
             // FIXME: Implement
             break;
         case BinKind::regexp_literal:
             // FIXME: Implement
             break;
         case BinKind::string_literal:
             // FIXME: Implement