diff --git a/src/test/java/de/ids_mannheim/korap/filter/TestKorapCollection.java b/src/test/java/de/ids_mannheim/korap/filter/TestKorapCollection.java
index ea35a63..bcd9ed3 100644
--- a/src/test/java/de/ids_mannheim/korap/filter/TestKorapCollection.java
+++ b/src/test/java/de/ids_mannheim/korap/filter/TestKorapCollection.java
@@ -83,16 +83,15 @@
 	
 	// Construct index
 	KorapIndex ki = new KorapIndex();
-	FieldDocument fd;
 	// Indexing test files
 	for (String i : new String[] {"00001", "00002", "00003", "00004", "00005", "00006", "02439"}) {
-	    fd = ki.addDocFile(
+	  ki.addDocFile(
 	      getClass().getResource("/wiki/" + i + ".json.gz").getFile(), true
             );
 	};
 	ki.commit();
 
-	fd = ki.addDocFile(getClass().getResource("/wiki/AUG-55286.json.gz").getFile(), true);
+	ki.addDocFile(getClass().getResource("/wiki/AUG-55286.json.gz").getFile(), true);
 
 	ki.commit();
 
diff --git a/src/test/resources/korap.conf b/src/test/resources/korap.conf
index 555b1a8..debbd62 100644
--- a/src/test/resources/korap.conf
+++ b/src/test/resources/korap.conf
@@ -1,5 +1,5 @@
 # Lucene Backend properties
 lucene.properties = true
 lucene.index = /home/ndiewald/Repositories/korap/KorAP-modules/KorAP-lucene-index/sandbox/index
-lucene.index.commit.count = 5000
+lucene.index.commit.count = 10000
 lucene.index.commit.log = log/korap.commit.log
\ No newline at end of file