diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index 25ea3346e..c4840d61f 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -15,3 +15,5 @@
 #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
 #   public *;
 #}
+-keep class com.simplemobiletools.** { *; }
+-dontwarn com.simplemobiletools.**