diff --git a/chrome/content/zotero/xpcom/integration_worker.js b/chrome/content/zotero/xpcom/integration_worker.js
index 69253c5ef8..856167cb03 100644
--- a/chrome/content/zotero/xpcom/integration_worker.js
+++ b/chrome/content/zotero/xpcom/integration_worker.js
@@ -42,7 +42,6 @@ onmessage = function(event) {
 	// define buffer for reading from fifo
 	const BUFFER_SIZE = 4096;
 	var buf = ctypes.char.array(BUFFER_SIZE)("");
-	var bufPtr = buf.address();
 	
 	while(true) {
 		// open fifo (this will block until something writes to it)