diff --git a/designateclient/cli/domains.py b/designateclient/cli/domains.py
index c23a1f9..fed6e3a 100644
--- a/designateclient/cli/domains.py
+++ b/designateclient/cli/domains.py
@@ -67,7 +67,7 @@ class CreateDomainCommand(base.CreateCommand):
         if parsed_args.description:
             domain.description = parsed_args.description
 
-        if parsed_args.ttl:
+        if parsed_args.ttl is not None:
             domain.ttl = parsed_args.ttl
 
         return self.client.domains.create(domain)
@@ -99,7 +99,7 @@ class UpdateDomainCommand(base.UpdateCommand):
         if parsed_args.email:
             domain.email = parsed_args.email
 
-        if parsed_args.ttl:
+        if parsed_args.ttl is not None:
             domain.ttl = parsed_args.ttl
 
         if parsed_args.no_description:
diff --git a/designateclient/cli/records.py b/designateclient/cli/records.py
index b9eddc5..ef8b6af 100644
--- a/designateclient/cli/records.py
+++ b/designateclient/cli/records.py
@@ -76,7 +76,7 @@ class CreateRecordCommand(base.CreateCommand):
             data=parsed_args.data,
         )
 
-        if parsed_args.ttl:
+        if parsed_args.ttl is not None:
             record.ttl = parsed_args.ttl
 
         if parsed_args.priority:
@@ -131,7 +131,7 @@ class UpdateRecordCommand(base.UpdateCommand):
 
         if parsed_args.no_ttl:
             record.ttl = None
-        elif parsed_args.ttl:
+        elif parsed_args.ttl is not None:
             record.ttl = parsed_args.ttl
 
         if parsed_args.no_priority: