diff --git a/tools/golang/xenlight/gengotypes.py b/tools/golang/xenlight/gengotypes.py
index e9ad92afa0..2b71aa1ea8 100644
--- a/tools/golang/xenlight/gengotypes.py
+++ b/tools/golang/xenlight/gengotypes.py
@@ -737,6 +737,7 @@ if __name__ == '__main__':
     // This file is generated by:
     // {}
     //
+
     """.format(' '.join(sys.argv))
 
     xenlight_golang_generate_types(types=types,
diff --git a/tools/golang/xenlight/helpers.gen.go b/tools/golang/xenlight/helpers.gen.go
index b5bd0de830..1e58ebbab2 100644
--- a/tools/golang/xenlight/helpers.gen.go
+++ b/tools/golang/xenlight/helpers.gen.go
@@ -3,6 +3,7 @@
 // This file is generated by:
 // gengotypes.py ../../libxl/libxl_types.idl
 //
+
 package xenlight
 
 import (
diff --git a/tools/golang/xenlight/types.gen.go b/tools/golang/xenlight/types.gen.go
index 15516ae552..be42f75529 100644
--- a/tools/golang/xenlight/types.gen.go
+++ b/tools/golang/xenlight/types.gen.go
@@ -3,6 +3,7 @@
 // This file is generated by:
 // gengotypes.py ../../libxl/libxl_types.idl
 //
+
 package xenlight
 
 type Error int