diff --git a/modules/fcitx5/theme.conf b/modules/fcitx5/theme.conf
index ac6f54e..636c50d 100644
--- a/modules/fcitx5/theme.conf
+++ b/modules/fcitx5/theme.conf
@@ -5,8 +5,8 @@ ScaleWithDPI=True
 Font=Sans 13
 NormalColor=@fg0@
 HighlightCandidateColor=@fg1@;
-HighlightColor=@undefined@
-HighlightBackgroundColor=@undefined@
+HighlightColor=@fg0@
+HighlightBackgroundColor=@highlight@
 Spacing=3
 
 [InputPanel/TextMargin]