diff --git a/chrome/content/zotero/xpcom/integration.js b/chrome/content/zotero/xpcom/integration.js
index 00d34568b..2ce1a52a7 100644
--- a/chrome/content/zotero/xpcom/integration.js
+++ b/chrome/content/zotero/xpcom/integration.js
@@ -1032,6 +1032,8 @@ Zotero.Integration.Document.prototype._getSession = Zotero.Promise.coroutine(fun
 			this._session = this._createNewSession(data);
 			try {
 				yield this._session.setData(data);
+				// this._createNewSession() updates sessionID, which we need to store back into the doc
+				this._doc.setDocumentData(me._session.data.serialize())
 			} catch(e) {
 				// make sure style is defined
 				if(e instanceof Zotero.Exception.Alert && e.name === "integration.error.invalidStyle") {
diff --git a/test/tests/integrationTest.js b/test/tests/integrationTest.js
index 46bfea44e..80e315b16 100644
--- a/test/tests/integrationTest.js
+++ b/test/tests/integrationTest.js
@@ -352,10 +352,10 @@ describe("Zotero.Integration", function () {
 				assert.isFalse(setDocumentDataSpy.called);
 			});
 			
-			it('should not call doc.setDocumentData when document communicates for first time since restart, but has data', function* () {
+			it('should call doc.setDocumentData when document communicates for first time since restart to write new sessionID', function* () {
 				Zotero.Integration.sessions = {};
 				yield execCommand('addEditCitation', docID);
-				assert.isFalse(setDocumentDataSpy.called);
+				assert.isTrue(setDocumentDataSpy.calledOnce);
 			});
 			
 			describe('when style used in the document does not exist', function() {