diff --git a/oeffi/build.gradle b/oeffi/build.gradle
index 99daf6b..acdb9a7 100644
--- a/oeffi/build.gradle
+++ b/oeffi/build.gradle
@@ -41,6 +41,7 @@ android {
     buildTypes {
         all {
             minifyEnabled true
+            shrinkResources true
             proguardFile 'proguard.cfg'
         }
         debug {