diff --git a/gtk/ui/gtkemojichooser.ui b/gtk/ui/gtkemojichooser.ui
index 8533fe007e..71248ee0b3 100644
--- a/gtk/ui/gtkemojichooser.ui
+++ b/gtk/ui/gtkemojichooser.ui
@@ -32,6 +32,7 @@
                         <property name="orientation">vertical</property>
                         <property name="margin">6</property>
                         <property name="spacing">6</property>
+                        <!-- Remember to keep headings here in sync with button tooltips below -->
                         <child>
                           <object class="GtkFlowBox" id="recent.box">
                             <property name="homogeneous">1</property>
@@ -162,9 +163,11 @@
                 </child>
                 <child>
                   <object class="GtkBox">
+                    <!-- Remember to keep tooltips here in sync with section headings above -->
                     <child>
                       <object class="GtkButton" id="recent.button">
                         <property name="relief">none</property>
+                        <property name="tooltip-text" translatable="yes">Recent</property>
                         <style>
                           <class name="emoji-section"/>
                         </style>
@@ -173,6 +176,7 @@
                     <child>
                       <object class="GtkButton" id="people.button">
                         <property name="relief">none</property>
+                        <property name="tooltip-text" translatable="yes">Smileys &amp; People</property>
                         <style>
                           <class name="emoji-section"/>
                         </style>
@@ -181,6 +185,7 @@
                     <child>
                       <object class="GtkButton" id="body.button">
                         <property name="relief">none</property>
+                        <property name="tooltip-text" translatable="yes">Body &amp; Clothing</property>
                         <style>
                           <class name="emoji-section"/>
                         </style>
@@ -189,6 +194,7 @@
                     <child>
                       <object class="GtkButton" id="nature.button">
                         <property name="relief">none</property>
+                        <property name="tooltip-text" translatable="yes">Animals &amp; Nature</property>
                         <style>
                           <class name="emoji-section"/>
                         </style>
@@ -197,6 +203,7 @@
                     <child>
                       <object class="GtkButton" id="food.button">
                         <property name="relief">none</property>
+                        <property name="tooltip-text" translatable="yes">Food &amp; Drink</property>
                         <style>
                           <class name="emoji-section"/>
                         </style>
@@ -205,6 +212,7 @@
                     <child>
                       <object class="GtkButton" id="travel.button">
                         <property name="relief">none</property>
+                        <property name="tooltip-text" translatable="yes">Travel &amp; Places</property>
                         <style>
                           <class name="emoji-section"/>
                         </style>
@@ -213,6 +221,7 @@
                     <child>
                       <object class="GtkButton" id="activities.button">
                         <property name="relief">none</property>
+                        <property name="tooltip-text" translatable="yes">Activities</property>
                         <style>
                           <class name="emoji-section"/>
                         </style>
@@ -221,6 +230,7 @@
                     <child>
                       <object class="GtkButton" id="objects.button">
                         <property name="relief">none</property>
+                         <property name="tooltip-text" translatable="yes" context="emoji category">Objects</property>
                         <style>
                           <class name="emoji-section"/>
                         </style>
@@ -229,6 +239,7 @@
                     <child>
                       <object class="GtkButton" id="symbols.button">
                         <property name="relief">none</property>
+                        <property name="tooltip-text" translatable="yes">Symbols</property>
                         <style>
                           <class name="emoji-section"/>
                         </style>
@@ -237,6 +248,7 @@
                     <child>
                       <object class="GtkButton" id="flags.button">
                         <property name="relief">none</property>
+                        <property name="tooltip-text" translatable="yes">Flags</property>
                         <style>
                           <class name="emoji-section"/>
                         </style>