diff --git a/.env-example b/.env-example
index 73a1bac..b54e544 100644
--- a/.env-example
+++ b/.env-example
@@ -5,3 +5,4 @@ DB_USER=test
 DB_PASS=testpass
 DB_DB=pdns
 DNS_MASTER=wile
+LOG_LEVEL=DEBUG
diff --git a/main.py b/main.py
index 2a209eb..263e371 100644
--- a/main.py
+++ b/main.py
@@ -34,7 +34,7 @@ def main():
                 print(f"{answer=}")
                 if not expected:
                     expected = answer.rrset.to_text()
-                    print(f"set {expected=}")
+                    # print(f"set {expected=}")
                 else:
                     if answer.rrset.to_text() != expected:
                         print(f"{answer.rrset.to_text()=} differs from {expected=}")
@@ -53,7 +53,12 @@ def main():
                         db.query(f"""UPDATE records SET content = '{' '.join(carr)}' WHERE id={id}""")
                         db.commit()
             except:
-                print(f"{zone} has no DNSKEY")
+                logging.error(f"{zone} has no DNSKEY")
 
 if __name__ == "__main__":
+    logging.basicConfig(format='%(asctime)s %(name)-12s %(levelname)-8s %(message)s',
+                    datefmt='%Y-%m-%d %H:%M:%S',
+                    filename=config('LOG_FILENAME', './dnssec-fix.log'),
+                    level=config('LOG_LEVEL', 'DEBUG'))
+
     main()