diff --git a/sdk_container/src/third_party/coreos-overlay/coreos/config/make.conf.amd64-host b/sdk_container/src/third_party/coreos-overlay/coreos/config/make.conf.amd64-host
index 5799017464..35d393e34b 100644
--- a/sdk_container/src/third_party/coreos-overlay/coreos/config/make.conf.amd64-host
+++ b/sdk_container/src/third_party/coreos-overlay/coreos/config/make.conf.amd64-host
@@ -32,7 +32,9 @@ PORT_LOGDIR="/var/log/portage"
 
 PORTAGE_BINHOST="
     http://storage.core-os.net/coreos/sdk/${ARCH}/${COREOS_VERSION_STRING}/pkgs/
+    http://storage.core-os.net/coreos/sdk/${ARCH}/${COREOS_VERSION_STRING}/toolchain/
     http://storage.core-os.net/coreos/sdk/${ARCH}/${COREOS_SDK_VERSION}/pkgs/
+    http://storage.core-os.net/coreos/sdk/${ARCH}/${COREOS_SDK_VERSION}/toolchain/
 "
 
 # Remove all .la files for non-plugin libraries.
diff --git a/sdk_container/src/third_party/coreos-overlay/coreos/config/make.conf.amd64-target b/sdk_container/src/third_party/coreos-overlay/coreos/config/make.conf.amd64-target
index 621d667259..eb533f6a6a 100644
--- a/sdk_container/src/third_party/coreos-overlay/coreos/config/make.conf.amd64-target
+++ b/sdk_container/src/third_party/coreos-overlay/coreos/config/make.conf.amd64-target
@@ -15,7 +15,9 @@ source make.conf.common
 # TODO: set $BOARD in make.conf.board_setup and use it
 PORTAGE_BINHOST="
     http://storage.core-os.net/coreos/amd64-generic/${COREOS_VERSION_STRING}/pkgs/
+    http://storage.core-os.net/coreos/amd64-generic/${COREOS_VERSION_STRING}/toolchain/
     http://storage.core-os.net/coreos/amd64-generic/${COREOS_SDK_VERSION}/pkgs/
+    http://storage.core-os.net/coreos/amd64-generic/${COREOS_SDK_VERSION}/toolchain/
 "
 
 # Recommended MARCH_TUNE, CFLAGS, etc.