diff --git a/polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view.js b/polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view.js
index 223be13707..5bbb9e9221 100644
--- a/polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view.js
+++ b/polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view.js
@@ -45,6 +45,7 @@
       _change: Object,
       _changeEditDetail: Object,
       _changeNum: String,
+      _patchNum: String,
       _path: String,
       _type: String,
       _content: String,
@@ -88,6 +89,7 @@
 
       this._changeNum = value.changeNum;
       this._path = value.path;
+      this._patchNum = value.patchNum || this.EDIT_NAME;
 
       // NOTE: This may be called before attachment (e.g. while parentElement is
       // null). Fire title-change in an async so that, if attachment to the DOM
@@ -100,7 +102,8 @@
       const promises = [];
 
       promises.push(this._getChangeDetail(this._changeNum));
-      promises.push(this._getFileData(this._changeNum, this._path));
+      promises.push(
+          this._getFileData(this._changeNum, this._path, this._patchNum));
       return Promise.all(promises);
     },
 
@@ -124,8 +127,8 @@
       Gerrit.Nav.navigateToChange(this._change, this.EDIT_NAME);
     },
 
-    _getFileData(changeNum, path) {
-      return this.$.restAPI.getFileContent(changeNum, path, this.EDIT_NAME)
+    _getFileData(changeNum, path, patchNum) {
+      return this.$.restAPI.getFileContent(changeNum, path, patchNum)
           .then(res => {
             if (!res.ok) { return; }
 
diff --git a/polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view_test.html b/polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view_test.html
index c257271983..74315f3291 100644
--- a/polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view_test.html
+++ b/polygerrit-ui/app/elements/edit/gr-editor-view/gr-editor-view_test.html
@@ -42,6 +42,7 @@ suite('gr-editor-view tests', () => {
   const mockParams = {
     changeNum: '42',
     path: 'foo/bar.baz',
+    patchNum: 'edit',
   };
 
   setup(() => {
@@ -83,7 +84,7 @@ suite('gr-editor-view tests', () => {
       assert.deepEqual(changeDetailStub.lastCall.args[0],
           mockParams.changeNum);
       assert.deepEqual(fileStub.lastCall.args,
-          [mockParams.changeNum, mockParams.path]);
+          [mockParams.changeNum, mockParams.path, mockParams.patchNum]);
 
       return promises.then(() => {
         assert.equal(element._content, 'text');
@@ -227,7 +228,7 @@ suite('gr-editor-view tests', () => {
           }));
 
       // Ensure no data is set with a bad response.
-      return element._getFileData('1', 'test/path').then(() => {
+      return element._getFileData('1', 'test/path', 'edit').then(() => {
         assert.equal(element._newContent, 'new content');
         assert.equal(element._content, 'new content');
         assert.equal(element._type, 'text/javascript');
@@ -239,7 +240,7 @@ suite('gr-editor-view tests', () => {
           .returns(Promise.resolve({}));
 
       // Ensure no data is set with a bad response.
-      return element._getFileData('1', 'test/path').then(() => {
+      return element._getFileData('1', 'test/path', 'edit').then(() => {
         assert.equal(element._newContent, 'initial');
         assert.equal(element._content, 'initial');
         assert.equal(element._type, 'initial');
@@ -253,7 +254,7 @@ suite('gr-editor-view tests', () => {
             type: 'text/javascript',
           }));
 
-      return element._getFileData('1', 'test/path').then(() => {
+      return element._getFileData('1', 'test/path', 'edit').then(() => {
         assert.equal(element._newContent, '');
         assert.equal(element._content, '');
         assert.equal(element._type, 'text/javascript');
@@ -266,7 +267,7 @@ suite('gr-editor-view tests', () => {
             ok: true,
           }));
 
-      return element._getFileData('1', 'test/path').then(() => {
+      return element._getFileData('1', 'test/path', 'edit').then(() => {
         assert.equal(element._newContent, '');
         assert.equal(element._content, '');
         assert.equal(element._type, '');