diff --git a/README.md b/README.md
index f4b9112..84e1b62 100644
--- a/README.md
+++ b/README.md
@@ -51,7 +51,7 @@ table name `student` and rows `student_id`, `student_name` with datatypes
 integer and text, respectively. The default value for `student_name` is
 `John Smith`.
 
-##Basic Usage
+## Basic Usage
 
 ### Entry manipulation
 
diff --git a/datalite/datalite_decorator.py b/datalite/datalite_decorator.py
index 60b6ff5..ad32add 100644
--- a/datalite/datalite_decorator.py
+++ b/datalite/datalite_decorator.py
@@ -27,7 +27,8 @@ def _create_entry(self) -> None:
         try:
             cur.execute(f"INSERT INTO {table_name}("
                         f"{', '.join(item[0] for item in kv_pairs)})"
-                        f" VALUES ({', '.join(_convert_sql_format(item[1]) for item in kv_pairs)});")
+                        f" VALUES ({', '.join('?' for item in kv_pairs)})",
+                        [_convert_sql_format(item[1]) for item in kv_pairs])
             self.__setattr__("obj_id", cur.lastrowid)
             con.commit()
         except IntegrityError: