1 files changed, 1 insertions, 0 deletions
diff --git a/src/enzymatic.js b/src/enzymatic.js
index cbc111f5..e6af4ab5 100644
--- a/src/enzymatic.js
+++ b/src/enzymatic.js
@@ -109,6 +109,7 @@ Substrate.prototype = {
             finished = true;
             finalResult = outputs[0];
           } else {
+            outputs.forEach(function(output) { delete output.tokens }); // clean up tokens to save memory
             that.results = that.results.concat(outputs);
           }
         }