diff --git a/proguard.basecfg b/proguard.basecfg
index b97f8b0..375d389 100644
--- a/proguard.basecfg
+++ b/proguard.basecfg
@@ -27,4 +27,5 @@
 }
 
 -keep public class * extends javax.microedition.midlet.MIDlet
+-keep public class * extends mahomaps.map.ILocationAPI