diff --git a/chrome/content/zotero/xpcom/retractions.js b/chrome/content/zotero/xpcom/retractions.js
index 33d532464b..b2d133f88f 100644
--- a/chrome/content/zotero/xpcom/retractions.js
+++ b/chrome/content/zotero/xpcom/retractions.js
@@ -189,8 +189,8 @@ Zotero.Retractions = {
 			else if (json.extra) {
 				let { fields } = Zotero.Utilities.Internal.extractExtraFields(json.extra);
 				let extraField = fields.get('DOI');
-				if (extraField && extraField.value) {
-					doi = extraField.value;
+				if (extraField) {
+					doi = extraField;
 				}
 			}
 			if (doi) {
@@ -675,7 +675,7 @@ Zotero.Retractions = {
 	},
 	
 	_getItemDOI: function (item) {
-		var itemDOI = item.getField('DOI') || item.getExtraField('doi');
+		var itemDOI = item.getField('DOI') || item.getExtraField('DOI');
 		if (itemDOI) {
 			itemDOI = Zotero.Utilities.cleanDOI(itemDOI);
 		}
@@ -772,9 +772,9 @@ Zotero.Retractions = {
 		rows = await Zotero.DB.queryAsync(sql, Zotero.ItemFields.getID('extra'));
 		for (let row of rows) {
 			let { fields } = Zotero.Utilities.Internal.extractExtraFields(row.value);
-			let doi = fields.get('doi');
-			if (!doi || !doi.value) continue;
-			let value = Zotero.Utilities.cleanDOI(doi.value);
+			let doi = fields.get('DOI');
+			if (!doi) continue;
+			let value = Zotero.Utilities.cleanDOI(doi);
 			if (!value) continue;
 			this._addItemKeyMapping(this.TYPE_DOI, value, row.id);
 		}
@@ -791,8 +791,8 @@ Zotero.Retractions = {
 			/*
 			let { fields } = Zotero.Utilities.Internal.extractExtraFields(row.value);
 			let pmid = fields.get('pmid') || fields.get('pubmedID');
-			if (!pmid || !pmid.value) continue;
-			this._addItemKeyMapping(this.TYPE_PMID, pmid.value, row.id);
+			if (!pmid) continue;
+			this._addItemKeyMapping(this.TYPE_PMID, pmid, row.id);
 			*/
 			let pmid = this._extractPMID(row.value);
 			if (!pmid) continue;
diff --git a/test/tests/retractionsTest.js b/test/tests/retractionsTest.js
index 1cf8eb7b60..c9a796962a 100644
--- a/test/tests/retractionsTest.js
+++ b/test/tests/retractionsTest.js
@@ -48,7 +48,30 @@ describe("Retractions", function() {
 		Object.assign(o, options);
 		var item = createUnsavedDataObject('item', o);
 		item.setField('DOI', retractedDOI);
-		if (Zotero.DB.inTransaction) {
+		if (Zotero.DB.inTransaction()) {
+			await item.save();
+		}
+		else {
+			await item.saveTx();
+		}
+		
+		while (!checkQueueItemsStub.called) {
+			await Zotero.Promise.delay(50);
+		}
+		await checkQueueItemsStub.returnValues[0];
+		checkQueueItemsStub.resetHistory();
+		
+		return item;
+	}
+	
+	async function createRetractedItemWithExtraDOI(options = {}) {
+		var o = {
+			itemType: 'journalArticle'
+		};
+		Object.assign(o, options);
+		var item = createUnsavedDataObject('item', o);
+		item.setField('extra', 'DOI: ' + retractedDOI);
+		if (Zotero.DB.inTransaction()) {
 			await item.save();
 		}
 		else {
@@ -219,6 +242,18 @@ describe("Retractions", function() {
 			
 			spy.restore();
 		});
+		
+		
+		it("should identify object with retracted DOI in Extra", async function () {
+			var json = [
+				{
+					extra: `DOI: ${retractedDOI}`
+				}
+			];
+			
+			var indexes = await Zotero.Retractions.getRetractionsFromJSON(json);
+			assert.sameMembers(indexes, [0]);
+		});
 	});
 	
 	
@@ -232,6 +267,15 @@ describe("Retractions", function() {
 			assert.isTrue(bannerShown());
 		});
 		
+		it("should show banner when retracted item with DOI in Extra is added", async function () {
+			var banner = win.document.getElementById('retracted-items-container');
+			assert.isFalse(bannerShown());
+			
+			await createRetractedItemWithExtraDOI();
+			
+			assert.isTrue(bannerShown());
+		});
+		
 		it("shouldn't show banner when item in trash is added", async function () {
 			var item = await createRetractedItem({ deleted: true });