diff --git a/fail2ban/server/mytime.py b/fail2ban/server/mytime.py
index 34a0eb42..0a7e6a79 100644
--- a/fail2ban/server/mytime.py
+++ b/fail2ban/server/mytime.py
@@ -125,3 +125,4 @@ class MyTime:
 			val = re.sub(r"(?i)(?<=[\d\s])(%s)\b" % rexp, "*"+str(rpl), val)
 		val = re.sub(r"(\d)\s+(\d)", r"\1+\2", val);
 		return eval(val)
+	str2seconds = staticmethod(str2seconds)