diff --git a/app/src/main/java/io/nekohasekai/sfa/utils/CommandClient.kt b/app/src/main/java/io/nekohasekai/sfa/utils/CommandClient.kt
index c1049c1..2f99426 100644
--- a/app/src/main/java/io/nekohasekai/sfa/utils/CommandClient.kt
+++ b/app/src/main/java/io/nekohasekai/sfa/utils/CommandClient.kt
@@ -77,7 +77,7 @@ class CommandClient(
             }
             Seq.destroyRef(refnum)
         }
-
+        commandClient = null
     }
 
     private inner class ClientHandler : CommandClientHandler {