diff --git a/Test/JavaSources/Main.java b/Test/JavaSources/Main.java
index aa84965..92c2929 100644
--- a/Test/JavaSources/Main.java
+++ b/Test/JavaSources/Main.java
@@ -1,7 +1,7 @@
 // compile all test files using:
 // ls Test/JavaSources/*.java | grep -v ".*Main.java" | xargs -I {} cabal run compiler {}
 // compile (in project root) using:
-// javac -g:none -sourcepath Test/JavaSources/ Test/JavaSources/Main.java
+// pushd Test/JavaSources; javac -g:none Main.java; popd
 // afterwards, run using
 // java -ea -cp Test/JavaSources/ Main
 
diff --git a/src/ByteCode/Util.hs b/src/ByteCode/Util.hs
index 4271e11..1e28397 100644
--- a/src/ByteCode/Util.hs
+++ b/src/ByteCode/Util.hs
@@ -220,7 +220,7 @@ getKnownMembers constants = let
 getClassIndex :: [ConstantInfo] -> String -> ([ConstantInfo], Int)
 getClassIndex constants name = case findClassIndex constants name of
     Just index -> (constants, index)
-    Nothing -> (constants ++ [ClassInfo (fromIntegral (length constants)), Utf8Info name], fromIntegral (length constants))
+    Nothing -> (constants ++ [ClassInfo (fromIntegral (length constants) + 2), Utf8Info name], fromIntegral (length constants) + 1)
 
 -- get the index for a field within a class, creating it if it does not exist.
 getFieldIndex :: [ConstantInfo] -> (String, String, String) -> ([ConstantInfo], Int)