diff --git a/app/src/main/java/com/osfans/trime/data/AppPrefs.kt b/app/src/main/java/com/osfans/trime/data/AppPrefs.kt
index 5ba8a3bc84..1ab45e1373 100644
--- a/app/src/main/java/com/osfans/trime/data/AppPrefs.kt
+++ b/app/src/main/java/com/osfans/trime/data/AppPrefs.kt
@@ -209,7 +209,7 @@ class AppPrefs(
         }
 
         val splitOption: SplitOption
-            get() = SplitOption.valueOf(prefs.getPref(SPLIT, SplitOption.NEVER.name))
+            get() = SplitOption.valueOf(prefs.getPref(SPLIT, SplitOption.NEVER.name).uppercase())
         val splitSpacePercent: Int
             get() = prefs.getPref(SPLIT_SPACE_PERCENT, 100)
         var candidatePageSize: Int = 0