diff --git a/proguard-android.txt b/proguard-android.txt
index ba369892..50bece9c 100644
--- a/proguard-android.txt
+++ b/proguard-android.txt
@@ -1,7 +1,10 @@
 # Fix appcompat-v7 v21.0.0 causing crash on Samsung devices with Android v4.2.2 (https://code.google.com/p/android/issues/detail?id=78377)
 -keep class !android.support.v7.internal.view.menu.MenuBuilder, !android.support.v7.internal.view.menu.SubMenuBuilder, android.support.v7.** { *; }
 -keep interface android.support.v7.** { *; }
--keep class android.support.v7.widget.ShareActionProvider { *; }
+-keep class android.support.v7.internal.** { *; }
+-keep interface android.support.v7.internal.** { *; }
+-keep class android.support.v7.** { *; }
+-keep interface android.support.v7.** { *; }
 
 # Enable reflective access to mX509Certificate
 -keepclassmembers class android.net.http.SslCertificate {