diff --git a/viper.go b/viper.go
index cee37b2..6a617b6 100644
--- a/viper.go
+++ b/viper.go
@@ -811,8 +811,6 @@ func (v *Viper) UnmarshalKey(key string, rawVal interface{}, opts ...DecoderConf
 		return err
 	}
 
-	v.insensitiviseMaps()
-
 	return nil
 }
 
@@ -828,8 +826,6 @@ func (v *Viper) Unmarshal(rawVal interface{}, opts ...DecoderConfigOption) error
 		return err
 	}
 
-	v.insensitiviseMaps()
-
 	return nil
 }