diff --git a/faiss/impl/ScalarQuantizer.cpp b/faiss/impl/ScalarQuantizer.cpp
index e05f3a1f25..ce94f306fa 100644
--- a/faiss/impl/ScalarQuantizer.cpp
+++ b/faiss/impl/ScalarQuantizer.cpp
@@ -6,7 +6,7 @@
  */
 
 // -*- c++ -*-
-
+// test CI
 #include <faiss/impl/ScalarQuantizer.h>
 
 #include <algorithm>