diff --git a/app/src/main/java/io/legado/app/ui/config/WebDavConfigFragment.kt b/app/src/main/java/io/legado/app/ui/config/WebDavConfigFragment.kt
index 0f70be7ef..b269f7a95 100644
--- a/app/src/main/java/io/legado/app/ui/config/WebDavConfigFragment.kt
+++ b/app/src/main/java/io/legado/app/ui/config/WebDavConfigFragment.kt
@@ -124,9 +124,7 @@ class WebDavConfigFragment : PreferenceFragmentCompat(),
 
     private fun backup() {
         val backupPath = getPrefString(PreferKey.backupPath)
-        if (backupPath?.isEmpty() == true) {
-            selectBackupFolder()
-        } else {
+        if (backupPath?.isNotEmpty() == true) {
             val uri = Uri.parse(backupPath)
             val doc = DocumentFile.fromTreeUri(requireContext(), uri)
             if (doc?.canWrite() == true) {
@@ -136,6 +134,8 @@ class WebDavConfigFragment : PreferenceFragmentCompat(),
             } else {
                 selectBackupFolder()
             }
+        } else {
+            selectBackupFolder()
         }
     }
 
@@ -161,9 +161,7 @@ class WebDavConfigFragment : PreferenceFragmentCompat(),
         launch {
             if (!WebDavHelp.showRestoreDialog(requireContext())) {
                 val backupPath = getPrefString(PreferKey.backupPath)
-                if (backupPath?.isEmpty() == true) {
-                    selectRestoreFolder()
-                } else {
+                if (backupPath?.isNotEmpty() == true) {
                     val uri = Uri.parse(backupPath)
                     val doc = DocumentFile.fromTreeUri(requireContext(), uri)
                     if (doc?.canWrite() == true) {
@@ -172,6 +170,8 @@ class WebDavConfigFragment : PreferenceFragmentCompat(),
                     } else {
                         selectBackupFolder()
                     }
+                } else {
+                    selectRestoreFolder()
                 }
             }
         }
diff --git a/app/src/main/java/io/legado/app/ui/main/MainActivity.kt b/app/src/main/java/io/legado/app/ui/main/MainActivity.kt
index c37e93149..80db372ca 100644
--- a/app/src/main/java/io/legado/app/ui/main/MainActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/main/MainActivity.kt
@@ -155,9 +155,7 @@ class MainActivity : VMBaseActivity<MainViewModel>(R.layout.activity_main),
 
     fun backup() {
         val backupPath = getPrefString(PreferKey.backupPath)
-        if (backupPath?.isEmpty() == true) {
-            selectBackupFolder()
-        } else {
+        if (backupPath?.isNotEmpty() == true) {
             val uri = Uri.parse(backupPath)
             val doc = DocumentFile.fromTreeUri(this, uri)
             if (doc?.canWrite() == true) {
@@ -167,6 +165,8 @@ class MainActivity : VMBaseActivity<MainViewModel>(R.layout.activity_main),
             } else {
                 selectBackupFolder()
             }
+        } else {
+            selectBackupFolder()
         }
     }
 
@@ -174,9 +174,7 @@ class MainActivity : VMBaseActivity<MainViewModel>(R.layout.activity_main),
         launch {
             if (!WebDavHelp.showRestoreDialog(this@MainActivity)) {
                 val backupPath = getPrefString(PreferKey.backupPath)
-                if (backupPath?.isEmpty() == true) {
-                    selectRestoreFolder()
-                } else {
+                if (backupPath?.isNotEmpty() == true) {
                     val uri = Uri.parse(backupPath)
                     val doc = DocumentFile.fromTreeUri(this@MainActivity, uri)
                     if (doc?.canWrite() == true) {
@@ -185,6 +183,8 @@ class MainActivity : VMBaseActivity<MainViewModel>(R.layout.activity_main),
                     } else {
                         selectBackupFolder()
                     }
+                } else {
+                    selectRestoreFolder()
                 }
             }
         }