diff --git a/proguard.cfg b/proguard.cfg
index 12dd039..4dc32b1 100644
--- a/proguard.cfg
+++ b/proguard.cfg
@@ -14,15 +14,15 @@
 -keep public class * extends android.preference.Preference
 -keep public class com.android.vending.licensing.ILicensingService
 
--keepclasseswithmembernames class * {
+-keepclasseswithmembers class * {
     native <methods>;
 }
 
--keepclasseswithmembernames class * {
+-keepclasseswithmembers class * {
     public <init>(android.content.Context, android.util.AttributeSet);
 }
 
--keepclasseswithmembernames class * {
+-keepclasseswithmembers class * {
     public <init>(android.content.Context, android.util.AttributeSet, int);
 }