diff --git a/sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/make.defaults b/sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/make.defaults
index 0131a5e29a..9dcf8cb33b 100644
--- a/sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/make.defaults
+++ b/sdk_container/src/third_party/coreos-overlay/profiles/coreos/base/make.defaults
@@ -85,6 +85,7 @@ PORTAGE_BUNZIP2_COMMAND="lbunzip2"
 # instead of ${ROOT}/var/tmp/ccache enables sharing results across
 # setup_board --force and between different boards of the same arch.
 CCACHE_COMPRESS=1
+CCACHE_COMPILERCHECK=content
 CCACHE_DIR="/var/tmp/ccache"
 
 # Always build binary packages, remove old build logs, avoid running as root.