diff --git a/src/main/kotlin/top/jie65535/jnr/JNudgeReply.kt b/src/main/kotlin/top/jie65535/jnr/JNudgeReply.kt
index d103b8c..3bd643e 100644
--- a/src/main/kotlin/top/jie65535/jnr/JNudgeReply.kt
+++ b/src/main/kotlin/top/jie65535/jnr/JNudgeReply.kt
@@ -59,13 +59,14 @@ object JNudgeReply : KotlinPlugin(
 
     @OptIn(ExperimentalCommandDescriptors::class, ConsoleExperimentalApi::class)
     suspend fun doReply(message: ReplyMessage, event: NudgeEvent) {
+        val mutePattern = Regex("(?<=#group.mute(\\\\)?:)\\d+")
         if(message.message.startsWith("#")) {
             when{
                 message.message == "#nudge" -> {
                     event.from.nudge().sendTo(event.subject)
                 }
-                message.message.matches(Regex("#group\\.mute(\\\\)?:\\d+")) -> {
-                    val (_, duration) = message.message.split(":")
+                message.message.matches(mutePattern) -> {
+                    val duration = mutePattern.find(message.message)?.value?.toLong()!!
                     val member: Member = event.from as Member
                     try {
                         member.mute(duration.toInt())
diff --git a/src/test/kotlin/RegexTest.kt b/src/test/kotlin/RegexTest.kt
new file mode 100644
index 0000000..fa84a59
--- /dev/null
+++ b/src/test/kotlin/RegexTest.kt
@@ -0,0 +1,4 @@
+fun main(){
+    val regex = Regex("(?<=#group\\.mute(\\\\)?:)\\d+")
+    println(regex.find("#group.mute:12345")?.value?.toLong())
+}
\ No newline at end of file
diff --git a/src/test/kotlin/RunMirai.kt b/src/test/kotlin/RunMirai.kt
index b5386be..5519c94 100644
--- a/src/test/kotlin/RunMirai.kt
+++ b/src/test/kotlin/RunMirai.kt
@@ -7,8 +7,6 @@ import top.jie65535.jnr.JNudgeReply
 
 @OptIn(ConsoleExperimentalApi::class)
 suspend fun main(){
-    val s = "#group.mute:10"
-    println(s.matches(Regex("#group.mute:\\d+")))
     MiraiConsoleTerminalLoader.startAsDaemon()
     JNudgeReply.load()
     JNudgeReply.enable()