diff --git a/plugin.py b/plugin.py
index 4b16961..1adf2ef 100644
--- a/plugin.py
+++ b/plugin.py
@@ -109,7 +109,7 @@ class SnoParser(callbacks.Plugin):
         self.redis_client_ips = self.redis_connect_ips()
 
     def whois_fresh(self, sourceip: str) -> dict:
-        """Data from cache."""
+        """Data from WHOIS backend (IANA or respective RIR)."""
         asn = 0
         subnet = ''
         try:
@@ -141,7 +141,7 @@ class SnoParser(callbacks.Plugin):
     def whois_set_cache(self, key: str, value: str) -> bool:
         """Data to Redis."""
 
-        duration = self.registryValue('whois.ttl')
+        duration = int(self.registryValue('whois.ttl'))
         state = self.redis_client_whois.setex(key, timedelta(seconds=duration), value=value,)
         return state