diff --git a/sys/oss/Makefile.am b/sys/oss/Makefile.am
index fcaebdb9c4..a793eb9bb7 100644
--- a/sys/oss/Makefile.am
+++ b/sys/oss/Makefile.am
@@ -22,5 +22,4 @@ noinst_HEADERS = gstosssink.h	\
 		gstossgst.h	\
 		gstosshelper.h	\
 		gstosselement.h\
-		gstossmixer.c	\
 		gstossmixer.h