diff --git a/core/function.go b/core/function.go
index 9f53563..85d473b 100644
--- a/core/function.go
+++ b/core/function.go
@@ -116,10 +116,10 @@ func AddCommand(prefix string, cmds []Function) {
 				if prefix != "" {
 					cmd.Rules[i] = prefix + `\s+` + cmd.Rules[i]
 				}
-				cmd.Rules[i] = strings.Replace(cmd.Rules[i], " ", `\s+`, -1)
-				cmd.Rules[i] = strings.Replace(cmd.Rules[i], "?", `(\S+)`, -1)
 				cmd.Rules[i] = strings.Replace(cmd.Rules[i], "(", `[(]`, -1)
 				cmd.Rules[i] = strings.Replace(cmd.Rules[i], ")", `[)]`, -1)
+				cmd.Rules[i] = strings.Replace(cmd.Rules[i], " ", `\s+`, -1)
+				cmd.Rules[i] = strings.Replace(cmd.Rules[i], "?", `(\S+)`, -1)
 				cmd.Rules[i] = "^" + cmd.Rules[i] + "$"
 			}
 		}