diff --git a/adb-channel b/adb-channel
index 1a2b470..0c6bd2d 100755
--- a/adb-channel
+++ b/adb-channel
@@ -9,7 +9,7 @@ activity=${2}
 delay=${3}
 
 atexit() {
-  [ -z "${activity}" ] || adb shell am force-stop ${activity%%/*}
+  [ -z "${activity}" ] || adb shell am force-stop ${activity}
   adb forward --remove localfilesystem:"${t}/sock"
   rm -rf "${t}"
 }