1 files changed, 1 insertions, 1 deletions

diff --git a/meta-yocto/conf/distro/poky.conf b/meta-yocto/conf/distro/poky.conf
index 44a9bc685f..538f3434b5 100644
--- a/meta-yocto/conf/distro/poky.conf
+++ b/meta-yocto/conf/distro/poky.conf
@@ -45,7 +45,7 @@ TCLIBCAPPEND = ""
 QEMU_TARGETS ?= "arm i386 mips mipsel ppc x86_64"
 # Other QEMU_TARGETS "mips64 mips64el sh4"
 
-PREMIRRORS ?= "\
+PREMIRRORS ??= "\
 bzr://.*/.*   http://downloads.yoctoproject.org/mirror/sources/ \n \
 cvs://.*/.*   http://downloads.yoctoproject.org/mirror/sources/ \n \
 git://.*/.*   http://downloads.yoctoproject.org/mirror/sources/ \n \