diff --git a/app/apk/src/main/java/com/topjohnwu/magisk/ui/flash/FlashViewModel.kt b/app/apk/src/main/java/com/topjohnwu/magisk/ui/flash/FlashViewModel.kt
index 4947f56e7..81122bfb0 100644
--- a/app/apk/src/main/java/com/topjohnwu/magisk/ui/flash/FlashViewModel.kt
+++ b/app/apk/src/main/java/com/topjohnwu/magisk/ui/flash/FlashViewModel.kt
@@ -190,7 +190,7 @@ class FlashViewModel : BaseViewModel() {
                 "sh $dir/update-binary dummy 1 '${zipFile.absolutePath}'; " +
                 "EXIT=\$?; " +
                 "if [ \$EXIT -ne 0 ]; then echo '! Installation failed'; fi; " +
-                "exit \$EXIT) >$ptyPath 2>&1"
+                "exit \$EXIT) <>$ptyPath >&0 2>&0"
             ).exec().isSuccess
         }
 
diff --git a/app/apk/src/main/java/com/topjohnwu/magisk/ui/module/ActionViewModel.kt b/app/apk/src/main/java/com/topjohnwu/magisk/ui/module/ActionViewModel.kt
index ab54d5907..9d6ec1489 100644
--- a/app/apk/src/main/java/com/topjohnwu/magisk/ui/module/ActionViewModel.kt
+++ b/app/apk/src/main/java/com/topjohnwu/magisk/ui/module/ActionViewModel.kt
@@ -70,7 +70,7 @@ class ActionViewModel : BaseViewModel() {
 
             val success = withContext(Dispatchers.IO) {
                 Shell.cmd(
-                    "(export TERM=xterm-256color; run_action '$actionId') >$ptyPath 2>&1"
+                    "(export TERM=xterm-256color; run_action '$actionId') <>$ptyPath >&0 2>&0"
                 ).exec().isSuccess
             }