diff --git a/viper.go b/viper.go
index 2bc8db5..c9e9f09 100644
--- a/viper.go
+++ b/viper.go
@@ -455,7 +455,7 @@ func (v *Viper) GetStringMapString(key string) map[string]string {
 	return cast.ToStringMapString(v.Get(key))
 }
 
-// Returns the value associated with the key as a map to a slice of strings
+// Returns the value associated with the key as a map to a slice of strings.
 func GetStringMapStringSlice(key string) map[string][]string { return v.GetStringMapStringSlice(key) }
 func (v *Viper) GetStringMapStringSlice(key string) map[string][]string {
 	return cast.ToStringMapStringSlice(v.Get(key))