diff --git a/data/magic-m15-mainframe-dfc.mse-style/style b/data/magic-m15-mainframe-dfc.mse-style/style
index 6ae8c64f2..0fca13a21 100644
--- a/data/magic-m15-mainframe-dfc.mse-style/style
+++ b/data/magic-m15-mainframe-dfc.mse-style/style
@@ -820,7 +820,7 @@ init script:
 	snapping_chaptersb := {
 		splits := split_comma(styling.snap_chapter_to_back_box)
 		len := length(splits)
-		if styling.snap_chapter_to_box == ""
+		if styling.snap_chapter_to_back_box == ""
 			then 0
 		else if splits[len-1] == ""
 			then len - 1