diff --git a/src/com/android/settings/deviceinfo/firmwareversion/BuildNumberDialogController.java b/src/com/android/settings/deviceinfo/firmwareversion/BuildNumberDialogController.java
new file mode 100644
index 00000000000..d99586715aa
--- /dev/null
+++ b/src/com/android/settings/deviceinfo/firmwareversion/BuildNumberDialogController.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.deviceinfo.firmwareversion;
+
+import android.os.Build;
+import android.support.annotation.VisibleForTesting;
+import android.text.BidiFormatter;
+
+import com.android.settings.R;
+
+public class BuildNumberDialogController {
+
+    @VisibleForTesting
+    static final int BUILD_NUMBER_VALUE_ID = R.id.build_number_value;
+
+    private final FirmwareVersionDialogFragment mDialog;
+
+    public BuildNumberDialogController(FirmwareVersionDialogFragment dialog) {
+        mDialog = dialog;
+    }
+
+    /**
+     * Updates the build number to the dialog.
+     */
+    public void initialize() {
+        mDialog.setText(BUILD_NUMBER_VALUE_ID,
+                BidiFormatter.getInstance().unicodeWrap(Build.DISPLAY));
+    }
+}
diff --git a/src/com/android/settings/deviceinfo/firmwareversion/FirmwareVersionDialogFragment.java b/src/com/android/settings/deviceinfo/firmwareversion/FirmwareVersionDialogFragment.java
index d58d999b3e2..0087444605b 100644
--- a/src/com/android/settings/deviceinfo/firmwareversion/FirmwareVersionDialogFragment.java
+++ b/src/com/android/settings/deviceinfo/firmwareversion/FirmwareVersionDialogFragment.java
@@ -88,5 +88,6 @@ public class FirmwareVersionDialogFragment extends InstrumentedDialogFragment {
         new SecurityPatchLevelDialogController(this).initialize();
         new BasebandVersionDialogController(this).initialize();
         new KernelVersionDialogController(this).initialize();
+        new BuildNumberDialogController(this).initialize();
     }
 }
diff --git a/tests/robotests/src/com/android/settings/deviceinfo/firmwareversion/BuildNumberDialogControllerTest.java b/tests/robotests/src/com/android/settings/deviceinfo/firmwareversion/BuildNumberDialogControllerTest.java
new file mode 100644
index 00000000000..8bdf84cf414
--- /dev/null
+++ b/tests/robotests/src/com/android/settings/deviceinfo/firmwareversion/BuildNumberDialogControllerTest.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.deviceinfo.firmwareversion;
+
+import static com.android.settings.deviceinfo.firmwareversion.BuildNumberDialogController
+        .BUILD_NUMBER_VALUE_ID;
+
+import static org.mockito.Mockito.verify;
+
+import android.os.Build;
+import android.text.BidiFormatter;
+
+import com.android.settings.TestConfig;
+import com.android.settings.testutils.SettingsRobolectricTestRunner;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.annotation.Config;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION_O)
+public class BuildNumberDialogControllerTest {
+
+    @Mock
+    private FirmwareVersionDialogFragment mDialog;
+
+    private BuildNumberDialogController mController;
+
+    @Before
+    public void setup() {
+        MockitoAnnotations.initMocks(this);
+        mController = new BuildNumberDialogController(mDialog);
+    }
+
+    @Test
+    public void initialize_shouldUpdateBuildNumberToDialog() {
+        mController.initialize();
+
+        verify(mDialog).setText(BUILD_NUMBER_VALUE_ID,
+                BidiFormatter.getInstance().unicodeWrap(Build.DISPLAY));
+    }
+}