diff --git a/lib/cc/engine/analyzers/javascript/main.rb b/lib/cc/engine/analyzers/javascript/main.rb
index 8f7f2d7d..05ae2d8a 100644
--- a/lib/cc/engine/analyzers/javascript/main.rb
+++ b/lib/cc/engine/analyzers/javascript/main.rb
@@ -36,6 +36,8 @@ def use_sexp_lines?
           #   => s(:NUKE, s(:Program, :module, s(:NUKE, ... )))
 
           def transform_sexp(sexp)
+            return sexp unless sexp.body
+
             sexp.body.sexp_type = :NUKE # negate top level body
             sexp = s(:NUKE, sexp) # wrap with extra node to force full process