diff --git a/proguard-release.flags b/proguard-release.flags
index 36b6720..67ae150 100644
--- a/proguard-release.flags
+++ b/proguard-release.flags
@@ -12,6 +12,8 @@
 #  See the License for the specific language governing permissions and
 #  limitations under the License.
 
+-keep class com.android.messaging.ui.contact.* { *; }
+
 -assumenosideeffects public class com.android.messaging.util.Trace {
     public void beginSection(...);
     public void endSection(...);