diff --git a/sys/modules/geom/geom_flashmap/Makefile b/sys/modules/geom/geom_flashmap/Makefile
index 97e4fd7337bb..8b56c145ea51 100644
--- a/sys/modules/geom/geom_flashmap/Makefile
+++ b/sys/modules/geom/geom_flashmap/Makefile
@@ -5,9 +5,4 @@
 KMOD=	geom_flashmap
 SRCS=	geom_flashmap.c
 
-.if !empty(OPT_FDT)
-.PATH:	${SRCTOP}/sys/dev/fdt
-SRCS+=	fdt_slicer.c
-.endif
-
 .include <bsd.kmod.mk>