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 d5d62c44fb1c980bd9b0e32dc3cabbdb2edd46f1..814bfe8b4a5594132cea1007db3bff04383dc4db 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 dedfaba69013fb4401ef1b59aa87a3cc932307f2..b89f630d105a40418fad4ee9f6e43a3ddcb047e5 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
@@ -2,6 +2,7 @@ package org.briarproject.briar.android.keyagreement;
 
 import android.content.Context;
 import android.graphics.Bitmap;
+import android.hardware.Camera;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.support.annotation.UiThread;
@@ -147,6 +148,9 @@ public class ShowQrCodeFragment extends BaseEventFragment
 		startListening();
 	}
 
+	/**
+	 * See {@link Camera#setDisplayOrientation(int)}.
+	 */
 	private int getScreenRotationDegrees() {
 		Display d = getActivity().getWindowManager().getDefaultDisplay();
 		switch (d.getRotation()) {