diff --git a/app/src/main/java/io/legado/app/constant/AppConst.kt b/app/src/main/java/io/legado/app/constant/AppConst.kt
index b474863fb..31dbb55b8 100644
--- a/app/src/main/java/io/legado/app/constant/AppConst.kt
+++ b/app/src/main/java/io/legado/app/constant/AppConst.kt
@@ -37,7 +37,7 @@ object AppConst {
     val keyboardToolChars: List<String> by lazy {
         arrayListOf(
             "❓", "@css:", "<js></js>", "{{}}", "&&", "%%", "||", "//", "$.", "@", "class", "id", "href",
-	    "textNodes", "ownText", "all", "html", "[", "]", "<", ">","#", "!", ".", "+", "-", "*", "="
+            "textNodes", "ownText", "all", "html", "[", "]", "<", ">","#", "!", ".", "+", "-", "*", "="
         )
     }
 
@@ -68,4 +68,4 @@ object AppConst {
     )
 
     val sysElevation = App.INSTANCE.resources.getDimension(R.dimen.design_appbar_elevation).toInt()
-}
\ No newline at end of file
+}