diff --git a/app/build.gradle b/app/build.gradle
index 51dc677df..b680dcd98 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -210,7 +210,7 @@ pmd {
 task pmd(type: Pmd, dependsOn: assembleDebug) {
     ruleSets = [
         //'java-basic',
-        //'java-unusedcode',
+        'java-unusedcode',
         'java-android',
         'java-clone',
         'java-finalizers',
diff --git a/app/src/main/java/org/fdroid/fdroid/AndroidXMLDecompress.java b/app/src/main/java/org/fdroid/fdroid/AndroidXMLDecompress.java
index b8569f246..c801106ca 100644
--- a/app/src/main/java/org/fdroid/fdroid/AndroidXMLDecompress.java
+++ b/app/src/main/java/org/fdroid/fdroid/AndroidXMLDecompress.java
@@ -91,7 +91,6 @@ public class AndroidXMLDecompress {
 
         while (offset < binaryXml.length) {
             int tag0 = littleEndianWord(binaryXml, offset);
-            int nameStringIndex = littleEndianWord(binaryXml, offset + 5 * 4);
 
             if (tag0 == startTag) {
                 int numbAttrs = littleEndianWord(binaryXml, offset + 7 * 4);