Fix thinko / type error
diff --git a/interfaces.go b/interfaces.go
index bdfaffd..71c0be4 100644
--- a/interfaces.go
+++ b/interfaces.go
@@ -221,7 +221,7 @@
// CreateDefaultSGRule creates a default security group rule.
// This method only works if the provider supports the os-security-groups-default-rules extension.
- CreateDefaultSGRule(SGRule) error
+ CreateDefaultSGRule(SGRule) (*SGRule, error)
// GetSGRule obtains information for a specified security group rule.
// This method only works if the provider supports the os-security-groups-default-rules extension.