diff --git a/zanata-war/src/main/java/org/zanata/rest/service/TMXStreamingOutput.java b/zanata-war/src/main/java/org/zanata/rest/service/TMXStreamingOutput.java
index 62c4627aed..6825dab5be 100644
--- a/zanata-war/src/main/java/org/zanata/rest/service/TMXStreamingOutput.java
+++ b/zanata-war/src/main/java/org/zanata/rest/service/TMXStreamingOutput.java
@@ -74,7 +74,7 @@ public void write(OutputStream output) throws IOException, WebApplicationExcepti
       @Cleanup
       Closeable closeable = (Closeable) (tuIter instanceof Closeable ? tuIter : NullCloseable.INSTANCE);
       @SuppressWarnings("null")
-      PeekingIterator<SourceContents> iter = Iterators.peekingIterator(tuIter);
+      PeekingIterator<TU> iter = Iterators.peekingIterator(tuIter);
       // Fetch the first result, so that we can fail fast, before
       // writing any output. This should enable RESTEasy to return an
       // error instead of simply aborting the output stream.