diff --git a/common/predictive-text/unit_tests/in_browser/cases/basic.js b/common/predictive-text/unit_tests/in_browser/cases/basic.js
index 964edfddee..21c592eb87 100644
--- a/common/predictive-text/unit_tests/in_browser/cases/basic.js
+++ b/common/predictive-text/unit_tests/in_browser/cases/basic.js
@@ -17,7 +17,6 @@ describe('LMLayerWorker', function () {
       assert.isString(code);
 
       let blob = new Blob([code], { type: 'text/javascript' });
-      debugger;
       let uri = URL.createObjectURL(blob);
 
       let worker = new Worker(uri);
diff --git a/common/predictive-text/worker/index.ts b/common/predictive-text/worker/index.ts
index 44661c4937..98550beb12 100644
--- a/common/predictive-text/worker/index.ts
+++ b/common/predictive-text/worker/index.ts
@@ -205,6 +205,9 @@ class LMLayerWorker {
 // Let LMLayerWorker be available both in browser and in Node.
 if (typeof module !== 'undefined' && typeof module.exports !== 'undefined') {
   module.exports = LMLayerWorker;
+} else if (typeof self !== 'undefined' && 'postMessage' in self) {
+  // Automatically install if we're in a Web Worker.
+  LMLayerWorker.install(self as DedicatedWorkerGlobalScope);
 } else {
   //@ts-ignore
   window.LMLayerWorker = LMLayerWorker;