--- a/mobile/android/base/java/org/mozilla/gecko/reader/ReaderModeUtils.java
+++ b/mobile/android/base/java/org/mozilla/gecko/reader/ReaderModeUtils.java
@@ -15,17 +15,17 @@ public class ReaderModeUtils {
     /**
      * Extract the URL from a valid about:reader URL. You may want to use stripAboutReaderUrl
      * instead to always obtain a valid String.
      *
      * @see #stripAboutReaderUrl(String) for a safer version that returns the original URL for malformed/invalid
      *     URLs.
      * @return <code>null</code> if the URL is malformed or doesn't contain a URL parameter.
      */
-    public static String getUrlFromAboutReader(String aboutReaderUrl) {
+    private static String getUrlFromAboutReader(String aboutReaderUrl) {
         return StringUtils.getQueryParameter(aboutReaderUrl, "url");
     }
 
     public static boolean isEnteringReaderMode(String currentUrl, String newUrl) {
         if (currentUrl == null || newUrl == null) {
             return false;
         }