diff --git a/briar-android/src/main/java/org/briarproject/briar/android/keyagreement/CameraView.java b/briar-android/src/main/java/org/briarproject/briar/android/keyagreement/CameraView.java
index d5d62c44f..814bfe8b4 100644
--- a/briar-android/src/main/java/org/briarproject/briar/android/keyagreement/CameraView.java
+++ b/briar-android/src/main/java/org/briarproject/briar/android/keyagreement/CameraView.java
@@ -223,6 +223,9 @@ public class CameraView extends SurfaceView implements SurfaceHolder.Callback,
 		}
 	}
 
+	/**
+	 * See {@link Camera#setDisplayOrientation(int)}.
+	 */
 	@UiThread
 	private void setDisplayOrientation(int rotationDegrees)
 			throws CameraException {
diff --git a/briar-android/src/main/java/org/briarproject/briar/android/keyagreement/ShowQrCodeFragment.java b/briar-android/src/main/java/org/briarproject/briar/android/keyagreement/ShowQrCodeFragment.java
index fce52f156..f62c52132 100644
--- a/briar-android/src/main/java/org/briarproject/briar/android/keyagreement/ShowQrCodeFragment.java
+++ b/briar-android/src/main/java/org/briarproject/briar/android/keyagreement/ShowQrCodeFragment.java
@@ -6,6 +6,7 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.graphics.Bitmap;
+import android.hardware.Camera;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.support.annotation.UiThread;
@@ -166,6 +167,9 @@ public class ShowQrCodeFragment extends BaseEventFragment
 		}
 	}
 
+	/**
+	 * See {@link Camera#setDisplayOrientation(int)}.
+	 */
 	private int getScreenRotationDegrees() {
 		Display d = getActivity().getWindowManager().getDefaultDisplay();
 		switch (d.getRotation()) {