diff --git a/vector/src/main/res/layout/fragment_known_users.xml b/vector/src/main/res/layout/fragment_known_users.xml
index 915d27bdf7..2afef9e7ac 100644
--- a/vector/src/main/res/layout/fragment_known_users.xml
+++ b/vector/src/main/res/layout/fragment_known_users.xml
@@ -119,7 +119,7 @@
             android:visibility="visible"
             app:icon="@drawable/ic_plus_circle"
             app:iconPadding="13dp"
-            app:iconTint="@color/riotx_accent"
+            app:iconTint="?colorAccent"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/knownUsersFilterDivider" />