diff --git a/build/cmake/aom_config_defaults.cmake b/build/cmake/aom_config_defaults.cmake
index 0317685..1b7992d 100644
--- a/build/cmake/aom_config_defaults.cmake
+++ b/build/cmake/aom_config_defaults.cmake
@@ -162,7 +162,6 @@
 set(CONFIG_LPF_SB 0 CACHE NUMBER "AV1 experiment flag.")
 set(CONFIG_LV_MAP 0 CACHE NUMBER "AV1 experiment flag.")
 set(CONFIG_LV_MAP_MULTI 0 CACHE NUMBER "AV1 experiment flag.")
-set(CONFIG_MASKED_TX 0 CACHE NUMBER "AV1 experiment flag.")
 set(CONFIG_MAX_TILE 1 CACHE NUMBER "AV1 experiment flag.")
 set(CONFIG_MFMV 0 CACHE NUMBER "AV1 experiment flag.")
 set(CONFIG_MONO_VIDEO 0 CACHE NUMBER "AV1 experiment flag.")
diff --git a/configure b/configure
index 52e9913..8de327f 100755
--- a/configure
+++ b/configure
@@ -291,7 +291,6 @@
     rd_debug
     reference_buffer
     entropy_stats
-    masked_tx
     dependent_horztiles
     dist_8x8
     palette_throughput