diff --git a/libfdt/Makefile.libfdt b/libfdt/Makefile.libfdt
index 4366627..91126c0 100644
--- a/libfdt/Makefile.libfdt
+++ b/libfdt/Makefile.libfdt
@@ -4,7 +4,7 @@
 # be easily embeddable into other systems of Makefiles.
 #
 LIBFDT_soname = libfdt.$(SHAREDLIB_EXT).1
-LIBFDT_INCLUDES = fdt.h libfdt.h
+LIBFDT_INCLUDES = fdt.h libfdt.h libfdt_env.h
 LIBFDT_VERSION = version.lds
 LIBFDT_SRCS = fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c fdt_empty_tree.c
 LIBFDT_OBJS = $(LIBFDT_SRCS:%.c=%.o)