diff --git a/legacy/ui/legacy/src/main/res/layout/message_compose_recipients.xml b/legacy/ui/legacy/src/main/res/layout/message_compose_recipients.xml
index d2df697bf2d..2c70b76b06e 100644
--- a/legacy/ui/legacy/src/main/res/layout/message_compose_recipients.xml
+++ b/legacy/ui/legacy/src/main/res/layout/message_compose_recipients.xml
@@ -195,6 +195,7 @@
                 android:padding="6dp"
                 android:scaleType="centerCrop"
                 app:srcCompat="@drawable/ic_expand_more"
+                android:contentDescription="@string/expand_content_description"
                 />
 
             <Space
@@ -322,6 +323,7 @@
                 android:scaleType="centerCrop"
                 app:srcCompat="@drawable/ic_expand_more"
                 android:id="@+id/recipient_expander"
+                android:contentDescription="@string/expand_content_description"
                 />
 
             <Space
diff --git a/legacy/ui/legacy/src/main/res/values/strings.xml b/legacy/ui/legacy/src/main/res/values/strings.xml
index 479726ae2ce..7022754b23b 100644
--- a/legacy/ui/legacy/src/main/res/values/strings.xml
+++ b/legacy/ui/legacy/src/main/res/values/strings.xml
@@ -840,6 +840,7 @@
     <string name="recipient_to">To</string>
     <string name="recipient_from">From</string>
     <string name="reply_to_label">Reply to</string>
+    <string name="expand_content_description">Expand</string>
     <string name="unknown_recipient">&lt;Unknown Recipient&gt;</string>
     <string name="unknown_sender">&lt;Unknown Sender&gt;</string>
     <string name="address_type_home">Home</string>