diff --git a/src/ast/rewriter/seq_rewriter_params.pyg b/src/ast/rewriter/seq_rewriter_params.pyg
new file mode 100644
index 000000000..6cd84e7a0
--- /dev/null
+++ b/src/ast/rewriter/seq_rewriter_params.pyg
@@ -0,0 +1,4 @@
+def_module_params(module_name='rewriter',
+                  class_name='seq_rewriter_params',
+                  export=True,
+                  params=(("coalesce_chars", BOOL, True, "coalesce characters into strings"),))