diff --git a/configure b/configure
index 3c59c6e6fbda5766ccb6ffdd98a1599ff4cf9ede..df8364af4f4a2a15f6a63af3651316962868bf1d 100755
--- a/configure
+++ b/configure
@@ -283,6 +283,7 @@ EXPERIMENT_LIST="
     alt_intra
     palette
     daala_ec
+    cb4x4
 "
 CONFIG_LIST="
     dependency_tracking