diff --git a/core/build.gradle b/core/build.gradle
index a64bbc134..31d71742a 100644
--- a/core/build.gradle
+++ b/core/build.gradle
@@ -12,7 +12,7 @@ android {
         release {
             shrinkResources true
             minifyEnabled true
-            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
 }
diff --git a/core/proguard-rules.pro b/core/proguard-rules.pro
index 495f9284a..9e85b4582 100644
--- a/core/proguard-rules.pro
+++ b/core/proguard-rules.pro
@@ -1,4 +1,6 @@
 # retain these to support class references and meaningful stack traces
 -keepnames class com.shatteredpixel.** { *; }
 -keepnames class com.watabou.** { *; }
+-keep class com.shatteredpixel.shatteredpixeldungeon { *; }
+-keep class com.watabou.noosa.game { *; }
 -keepattributes SourceFile,LineNumberTable
\ No newline at end of file