diff --git a/sys/modules/mrsas/Makefile b/sys/modules/mrsas/Makefile
index 8d8695b4e4f2..c3c7580805fe 100644
--- a/sys/modules/mrsas/Makefile
+++ b/sys/modules/mrsas/Makefile
@@ -17,7 +17,7 @@ CFLAGS+= -fgnu89-inline
 
 TARGET_ARCH = ${MACHINE_ARCH}
 .if ${TARGET_ARCH} == "amd64"
-CFLAGS+= -DCOMPAT_FREEBSD32 -D_STANDALONE
+CFLAGS+= -DCOMPAT_FREEBSD32
 .endif
 
 clean_cscope: