diff --git a/stepmania/src/Makefile.am b/stepmania/src/Makefile.am
index ff48f49265..fdb4f15f43 100644
--- a/stepmania/src/Makefile.am
+++ b/stepmania/src/Makefile.am
@@ -54,7 +54,7 @@ ScreenTitleMenu.cpp ScreenTitleMenu.h ScreenUnlock.cpp ScreenUnlock.h ScreenWith
 DataStructures = \
 Attack.cpp Attack.h AutoKeysounds.cpp AutoKeysounds.h BannerCache.cpp BannerCache.h CatalogXml.cpp CatalogXml.h \
 Character.cpp Character.h CharacterHead.cpp CharacterHead.h \
-CodeDetector.cpp CodeDetector.h 
+CodeDetector.cpp CodeDetector.h \
 Command.cpp Command.h Difficulty.cpp Difficulty.h EnumHelper.cpp EnumHelper.h Course.cpp Course.h \
 CourseUtil.cpp CourseUtil.h DateTime.cpp DateTime.h Font.cpp Font.h FontCharAliases.cpp FontCharAliases.h \
 FontCharmaps.cpp FontCharmaps.h Game.cpp Game.h GameCommand.cpp GameCommand.h \