diff --git a/app/proguard/zxing.pro b/app/proguard/zxing.pro
new file mode 100644
index 00000000..d5eeb97d
--- /dev/null
+++ b/app/proguard/zxing.pro
@@ -0,0 +1,5 @@
+# For enumeration classes, see http://proguard.sourceforge.net/manual/examples.html#enumerations
+-keepclassmembers enum * {
+    public static **[] values();
+    public static ** valueOf(java.lang.String);
+}
\ No newline at end of file