diff --git a/chrome/content/zotero/itemPane.xul b/chrome/content/zotero/itemPane.xul
index 1d65c21997..c0efe5a488 100644
--- a/chrome/content/zotero/itemPane.xul
+++ b/chrome/content/zotero/itemPane.xul
@@ -50,7 +50,7 @@
 			</grid>
 		</tabpanel>
 		
-		<tabpanel flex="1" align="top">
+		<tabpanel flex="1" orient="vertical">
 			<hbox align="center">
 				<label id="zotero-editpane-attachments-label"/>
 				<button id="zotero-tb-item-attachments-add" type="menu" label="&zotero.item.add;">
diff --git a/chrome/content/zotero/overlay.xul b/chrome/content/zotero/overlay.xul
index d3998b53a4..35b8842834 100644
--- a/chrome/content/zotero/overlay.xul
+++ b/chrome/content/zotero/overlay.xul
@@ -375,7 +375,7 @@
 					<groupbox pack="center" align="center">
 						<label id="zotero-view-selected-label"/>
 					</groupbox>
-					<tabbox id="zotero-view-tabbox">
+					<tabbox id="zotero-view-tabbox" flex="1">
 						<tabs>
 							<tab label="&zotero.tabs.info.label;"/>
 							<tab label="&zotero.tabs.notes.label;"/>