diff --git a/buildroot-external/board/hardkernel/kernel-amlogic.config b/buildroot-external/board/hardkernel/kernel-amlogic.config
index 11364c8c0..10c72f5e7 100644
--- a/buildroot-external/board/hardkernel/kernel-amlogic.config
+++ b/buildroot-external/board/hardkernel/kernel-amlogic.config
@@ -145,7 +145,6 @@ CONFIG_CGROUP_WRITEBACK=y
 CONFIG_CGROUP_SCHED=y
 CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_CFS_BANDWIDTH=y
-CONFIG_RT_GROUP_SCHED=y
 CONFIG_CGROUP_PIDS=y
 # CONFIG_CGROUP_RDMA is not set
 CONFIG_CGROUP_FREEZER=y
diff --git a/buildroot-external/board/khadas/kernel-vim.config b/buildroot-external/board/khadas/kernel-vim.config
index d9bfbca60..3251f0279 100644
--- a/buildroot-external/board/khadas/kernel-vim.config
+++ b/buildroot-external/board/khadas/kernel-vim.config
@@ -13,7 +13,6 @@ CONFIG_IKCONFIG_PROC=y
 CONFIG_MEMCG=y
 CONFIG_BLK_CGROUP=y
 CONFIG_CFS_BANDWIDTH=y
-CONFIG_RT_GROUP_SCHED=y
 CONFIG_CGROUP_PIDS=y
 CONFIG_CGROUP_FREEZER=y
 CONFIG_CGROUP_HUGETLB=y
diff --git a/buildroot-external/kernel/docker.config b/buildroot-external/kernel/docker.config
index 57991b38e..40b07857f 100644
--- a/buildroot-external/kernel/docker.config
+++ b/buildroot-external/kernel/docker.config
@@ -3,6 +3,7 @@ CONFIG_CFQ_GROUP_IOSCHED=y
 CONFIG_CFS_BANDWIDTH=y
 CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_NET_SCHED=y
+# CONFIG_RT_GROUP_SCHED is not set
 
 CONFIG_CGROUPS=y
 CONFIG_HUGETLB_PAGE=y