diff --git a/src/main/java/de/ids_mannheim/korap/KorapIndex.java b/src/main/java/de/ids_mannheim/korap/KorapIndex.java
index 8d5b93d..bfd6c94 100644
--- a/src/main/java/de/ids_mannheim/korap/KorapIndex.java
+++ b/src/main/java/de/ids_mannheim/korap/KorapIndex.java
@@ -154,7 +154,7 @@
 
     {
 	Properties prop = new Properties();
-	URL file = getClass().getResource("/index.properties");
+	URL file = getClass().getClassLoader().getResource("index.properties");
 
 	if (file != null) {
 	    String f = file.getFile();