diff --git a/app/src/main/res/values/settings_keys.xml b/app/src/main/res/values/settings_keys.xml
index 0de19c568..071592b73 100644
--- a/app/src/main/res/values/settings_keys.xml
+++ b/app/src/main/res/values/settings_keys.xml
@@ -249,5 +249,5 @@
         <item>@string/charset_most_special_characters</item>
     </string-array>
     
-    <string name="default_file_charset_value" translatable="false">@string/charset_most_special_characters</string>
+    <string name="default_file_charset_value" translatable="false">@string/charset_most_special_characters_value</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 9634d221c..f253167e2 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -197,8 +197,8 @@
     <string name="settings_file_replacement_character_summary">Invalid characters are replaced with this value</string>
     <string name="settings_file_replacement_character_title">Replacement character</string>
 
-    <string name="charset_letters_and_digits_value" translatable="false">[^\w\d]+</string>
-    <string name="charset_most_special_characters_value" translatable="false">[\n\r|\\?*&lt;":&gt;/']+</string>
+    <string name="charset_letters_and_digits_value" translatable="false">[^\\w\\d]+</string>
+    <string name="charset_most_special_characters_value" translatable="false">[\\n\\r|\\?*&lt;":&gt;/']+</string>
     <string name="charset_letters_and_digits">Letters and digits</string>
     <string name="charset_most_special_characters">Most special characters</string>