diff --git a/tools/build/options/WITH_FDT b/tools/build/options/WITHOUT_FDT
similarity index 50%
rename from tools/build/options/WITH_FDT
rename to tools/build/options/WITHOUT_FDT
index 5abb4e8541da..8f32d85c3cf0 100644
--- a/tools/build/options/WITH_FDT
+++ b/tools/build/options/WITHOUT_FDT
@@ -1,3 +1,3 @@
 .\" $FreeBSD$
-Set to build Flattened Device Tree support as part of the base system. This
+Set to not build Flattened Device Tree support as part of the base system. This
 includes the device tree compiler (dtc) and libfdt support library.