diff --git a/bramble-android/proguard-rules.txt b/bramble-android/proguard-rules.txt
index 1db39ebdfa3c5ed0a7e5f06b5f35b836f4eb87e7..7890a3139754c43debb38ef6f6217d1bb644a6b3 100644
--- a/bramble-android/proguard-rules.txt
+++ b/bramble-android/proguard-rules.txt
@@ -10,6 +10,8 @@
 
 -keep class net.i2p.crypto.eddsa.** { *; }
 
+-keep class org.whispersystems.curve25519.** { *; }
+
 -dontwarn sun.misc.Unsafe
 -dontnote com.google.common.**