diff --git a/modules/ve-mw-collab/ve.init.mw.CollabTarget.js b/modules/ve-mw-collab/ve.init.mw.CollabTarget.js
index 949b58c644..794b950130 100644
--- a/modules/ve-mw-collab/ve.init.mw.CollabTarget.js
+++ b/modules/ve-mw-collab/ve.init.mw.CollabTarget.js
@@ -81,6 +81,8 @@ ve.init.mw.CollabTarget.static.actionGroups = [
 		icon: 'menu',
 		indicator: null,
 		title: ve.msg( 'visualeditor-pagemenu-tooltip' ),
+		label: ve.msg( 'visualeditor-pagemenu-tooltip' ),
+		invisibleLabel: true,
 		include: [ 'changeDirectionality', 'findAndReplace' ]
 	},
 	{
diff --git a/modules/ve-mw-collab/ve.init.mw.MobileCollabTarget.js b/modules/ve-mw-collab/ve.init.mw.MobileCollabTarget.js
index 8af4eeea0a..c195545afd 100644
--- a/modules/ve-mw-collab/ve.init.mw.MobileCollabTarget.js
+++ b/modules/ve-mw-collab/ve.init.mw.MobileCollabTarget.js
@@ -46,6 +46,8 @@ ve.init.mw.MobileCollabTarget.static.toolbarGroups = [
 		type: 'list',
 		icon: 'textStyle',
 		title: OO.ui.deferMsg( 'visualeditor-toolbar-style-tooltip' ),
+		label: OO.ui.deferMsg( 'visualeditor-toolbar-style-tooltip' ),
+		invisibleLabel: true,
 		include: [ { group: 'textStyle' }, 'language', 'clear' ],
 		forceExpand: [ 'bold', 'italic', 'clear' ],
 		promote: [ 'bold', 'italic' ],
@@ -68,9 +70,10 @@ ve.init.mw.MobileCollabTarget.static.toolbarGroups = [
 		name: 'insert',
 		header: OO.ui.deferMsg( 'visualeditor-toolbar-insert' ),
 		title: OO.ui.deferMsg( 'visualeditor-toolbar-insert' ),
+		label: OO.ui.deferMsg( 'visualeditor-toolbar-insert' ),
+		invisibleLabel: true,
 		type: 'list',
 		icon: 'add',
-		label: '',
 		include: '*',
 		exclude: [ 'comment', 'indent', 'outdent', { group: 'format' } ]
 	},
diff --git a/modules/ve-mw/init/targets/ve.init.mw.DesktopArticleTarget.js b/modules/ve-mw/init/targets/ve.init.mw.DesktopArticleTarget.js
index 5ad32f779d..fd176fe02d 100644
--- a/modules/ve-mw/init/targets/ve.init.mw.DesktopArticleTarget.js
+++ b/modules/ve-mw/init/targets/ve.init.mw.DesktopArticleTarget.js
@@ -98,6 +98,8 @@ ve.init.mw.DesktopArticleTarget.static.actionGroups = [
 		icon: 'menu',
 		indicator: null,
 		title: ve.msg( 'visualeditor-pagemenu-tooltip' ),
+		label: ve.msg( 'visualeditor-pagemenu-tooltip' ),
+		invisibleLabel: true,
 		include: [ 'meta', 'categories', 'settings', 'advancedSettings', 'languages', 'templatesUsed', 'changeDirectionality', 'findAndReplace' ]
 	},
 	{
@@ -105,6 +107,8 @@ ve.init.mw.DesktopArticleTarget.static.actionGroups = [
 		type: 'list',
 		icon: 'edit',
 		title: ve.msg( 'visualeditor-mweditmode-tooltip' ),
+		label: ve.msg( 'visualeditor-mweditmode-tooltip' ),
+		invisibleLabel: true,
 		include: [ 'editModeVisual', 'editModeSource' ]
 	},
 	{
diff --git a/modules/ve-mw/init/targets/ve.init.mw.MobileArticleTarget.js b/modules/ve-mw/init/targets/ve.init.mw.MobileArticleTarget.js
index e3f2863541..7f07b3d483 100644
--- a/modules/ve-mw/init/targets/ve.init.mw.MobileArticleTarget.js
+++ b/modules/ve-mw/init/targets/ve.init.mw.MobileArticleTarget.js
@@ -54,6 +54,8 @@ ve.init.mw.MobileArticleTarget.static.toolbarGroups = [
 		type: 'list',
 		icon: 'textStyle',
 		title: OO.ui.deferMsg( 'visualeditor-toolbar-style-tooltip' ),
+		label: OO.ui.deferMsg( 'visualeditor-toolbar-style-tooltip' ),
+		invisibleLabel: true,
 		include: [ { group: 'textStyle' }, 'language', 'clear' ],
 		forceExpand: [ 'bold', 'italic', 'clear' ],
 		promote: [ 'bold', 'italic' ],
@@ -463,6 +465,8 @@ ve.init.mw.MobileArticleTarget.prototype.setupToolbar = function ( surface ) {
 				type: 'list',
 				icon: 'edit',
 				title: OO.ui.deferMsg( 'visualeditor-mweditmode-tooltip' ),
+				label: OO.ui.deferMsg( 'visualeditor-mweditmode-tooltip' ),
+				invisibleLabel: true,
 				include: [ 'editModeVisual', 'editModeSource' ]
 			},
 			{
diff --git a/modules/ve-mw/init/targets/ve.init.mw.Target.js b/modules/ve-mw/init/targets/ve.init.mw.Target.js
index e69beebe62..5b036b43dd 100644
--- a/modules/ve-mw/init/targets/ve.init.mw.Target.js
+++ b/modules/ve-mw/init/targets/ve.init.mw.Target.js
@@ -61,6 +61,8 @@ ve.init.mw.Target.static.toolbarGroups = [
 		type: 'list',
 		icon: 'textStyle',
 		title: OO.ui.deferMsg( 'visualeditor-toolbar-style-tooltip' ),
+		label: OO.ui.deferMsg( 'visualeditor-toolbar-style-tooltip' ),
+		invisibleLabel: true,
 		include: [ { group: 'textStyle' }, 'language', 'clear' ],
 		forceExpand: [ 'bold', 'italic', 'clear' ],
 		promote: [ 'bold', 'italic' ],
@@ -79,6 +81,8 @@ ve.init.mw.Target.static.toolbarGroups = [
 		type: 'list',
 		icon: 'listBullet',
 		title: OO.ui.deferMsg( 'visualeditor-toolbar-structure' ),
+		label: OO.ui.deferMsg( 'visualeditor-toolbar-structure' ),
+		invisibleLabel: true,
 		include: [ { group: 'structure' } ],
 		demote: [ 'outdent', 'indent' ]
 	},