diff --git a/meta/packages/meta/external-poky-toolchain.bb b/meta/packages/meta/external-poky-toolchain.bb
index c54ad91742..e3e3f868dc 100644
--- a/meta/packages/meta/external-poky-toolchain.bb
+++ b/meta/packages/meta/external-poky-toolchain.bb
@@ -14,6 +14,8 @@ PROVIDES = "\
 RPROVIDES = "glibc-gconv-iso8859-1"
 PR = "r1"
 
+DEFAULT_PREFERENCE = "-1"
+
 inherit sdk
 
 do_stage() {