diff --git a/android-project/app/proguard-rules.pro b/android-project/app/proguard-rules.pro
index 9985625dc3..21049255e6 100644
--- a/android-project/app/proguard-rules.pro
+++ b/android-project/app/proguard-rules.pro
@@ -33,6 +33,7 @@
     boolean isScreenKeyboardShown();
     boolean isTablet();
     void manualBackButton();
+    int messageboxShowMessageBox(int, java.lang.String, java.lang.String, int[], int[], java.lang.String[], int[]);
     void minimizeWindow();
     int openURL(java.lang.String);
     void requestPermission(java.lang.String, int);