diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index 39d9f8f8b72e832fa6bd0a04b21f17035a193088..52860a4afcaaef539b83e0d67025ab7793f58f23 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -131,3 +131,7 @@ native <methods>;
 
  -dontwarn java.awt.**
  -dontwarn org.slf4j.**
+
+ ###JNA
+ -keep class com.sun.jna.** { *; }
+ -keep class * implements com.sun.jna.** { *; }