diff --git a/chrome/content/zotero/reader.xhtml b/chrome/content/zotero/reader.xhtml
index 58b112d9a8..01a5d035c9 100644
--- a/chrome/content/zotero/reader.xhtml
+++ b/chrome/content/zotero/reader.xhtml
@@ -221,18 +221,18 @@
 					oncommand="menuCmd('zoomPageHeight')"
 				/>
 				<menuseparator class="menu-type-reader"/>
-				<menuitem
-						id="view-menuitem-split-vertically"
-						type="checkbox"
-						label="&zotero.pdfReader.splitVertically;"
-						oncommand="menuCmd('splitVertically')"
-				/>
 				<menuitem
 						id="view-menuitem-split-horizontally"
 						type="checkbox"
 						label="&zotero.pdfReader.splitHorizontally;"
 						oncommand="menuCmd('splitHorizontally')"
 				/>
+				<menuitem
+						id="view-menuitem-split-vertically"
+						type="checkbox"
+						label="&zotero.pdfReader.splitVertically;"
+						oncommand="menuCmd('splitVertically')"
+				/>
 			</menupopup>
 		</menu>
 		<menu
diff --git a/chrome/content/zotero/xpcom/reader.js b/chrome/content/zotero/xpcom/reader.js
index ef44c336ce..7fd124ab09 100644
--- a/chrome/content/zotero/xpcom/reader.js
+++ b/chrome/content/zotero/xpcom/reader.js
@@ -702,13 +702,6 @@ class ReaderInstance {
 		popup.appendChild(menuitem);
 		// Separator
 		popup.appendChild(this._window.document.createXULElement('menuseparator'));
-		// Split Vertically
-		menuitem = this._window.document.createXULElement('menuitem');
-		menuitem.setAttribute('label', Zotero.getString('pdfReader.splitVertically'));
-		menuitem.setAttribute('type', 'checkbox');
-		menuitem.setAttribute('checked', this.isSplitVerticallyActive());
-		menuitem.addEventListener('command', () => this._splitVertically());
-		popup.appendChild(menuitem);
 		// Split Horizontally
 		menuitem = this._window.document.createXULElement('menuitem');
 		menuitem.setAttribute('label', Zotero.getString('pdfReader.splitHorizontally'));
@@ -716,6 +709,13 @@ class ReaderInstance {
 		menuitem.setAttribute('checked', this.isSplitHorizontallyActive());
 		menuitem.addEventListener('command', () => this._splitHorizontally());
 		popup.appendChild(menuitem);
+		// Split Vertically
+		menuitem = this._window.document.createXULElement('menuitem');
+		menuitem.setAttribute('label', Zotero.getString('pdfReader.splitVertically'));
+		menuitem.setAttribute('type', 'checkbox');
+		menuitem.setAttribute('checked', this.isSplitVerticallyActive());
+		menuitem.addEventListener('command', () => this._splitVertically());
+		popup.appendChild(menuitem);
 		// Separator
 		popup.appendChild(this._window.document.createXULElement('menuseparator'));
 		// Next page
diff --git a/chrome/content/zotero/zoteroPane.xhtml b/chrome/content/zotero/zoteroPane.xhtml
index 3a52e3e42a..8450bcdb3a 100644
--- a/chrome/content/zotero/zoteroPane.xhtml
+++ b/chrome/content/zotero/zoteroPane.xhtml
@@ -393,13 +393,6 @@
 								oncommand="ZoteroStandalone.onReaderCmd('zoomPageHeight')"
 							/>
 							<menuseparator class="menu-type-reader"/>
-							<menuitem
-									id="view-menuitem-split-vertically"
-									class="menu-type-reader"
-									type="checkbox"
-									label="&zotero.pdfReader.splitVertically;"
-									oncommand="ZoteroStandalone.onReaderCmd('splitVertically')"
-							/>
 							<menuitem
 									id="view-menuitem-split-horizontally"
 									class="menu-type-reader"
@@ -407,6 +400,13 @@
 									label="&zotero.pdfReader.splitHorizontally;"
 									oncommand="ZoteroStandalone.onReaderCmd('splitHorizontally')"
 							/>
+							<menuitem
+									id="view-menuitem-split-vertically"
+									class="menu-type-reader"
+									type="checkbox"
+									label="&zotero.pdfReader.splitVertically;"
+									oncommand="ZoteroStandalone.onReaderCmd('splitVertically')"
+							/>
 							<menuseparator class="menu-type-reader"/>
 
 							<menu id="layout-menu" label="&layout.label;">