diff --git a/aegisub/Makefile.am b/aegisub/Makefile.am
index 9ac8a351b..d6f3d126b 100644
--- a/aegisub/Makefile.am
+++ b/aegisub/Makefile.am
@@ -139,7 +139,6 @@ EXTRA_aegisub_SOURCES = \
 	video_provider_dshow.cpp \
 	video_provider_lavc.cpp \
 	boost/*.hpp \
-	csri/*.h \
 	gl/*.h \
 	win32/stdint.h