diff --git a/codegen/genfacet b/codegen/genfacet
index 3aa114d..c20689d 100755
--- a/codegen/genfacet
+++ b/codegen/genfacet
@@ -482,7 +482,8 @@ def main():
 
     env = Environment(loader = FileSystemLoader(template_dir),
                       trim_blocks = True,
-                      lstrip_blocks = True)
+                      lstrip_blocks = True,
+                      keep_trailing_newline = True)
 
     # custom filters.
     # A filter 'foo' provides ability to write '{{var | foo}}' to expand