diff --git a/buildroot-external/overlay/base/etc/sysctl.conf b/buildroot-external/overlay/base/etc/sysctl.conf
index 57034105a7..6b6f90de5b 100644
--- a/buildroot-external/overlay/base/etc/sysctl.conf
+++ b/buildroot-external/overlay/base/etc/sysctl.conf
@@ -15,7 +15,7 @@ user.max_user_namespaces = 0
 
 # disable "deprecated CP15 Barrier instruction" warnings
 # https://www.kernel.org/doc/Documentation/arm64/legacy_instructions.txt
--abi.cp15_barrier = 2
+abi.cp15_barrier = 2
 
 # increase netfilter conntrack maximum hash table size to 256K
 net.netfilter.nf_conntrack_buckets = 65536
diff --git a/buildroot-external/package/recovery-system/external/overlay/base/etc/sysctl.conf b/buildroot-external/package/recovery-system/external/overlay/base/etc/sysctl.conf
index 57034105a7..6b6f90de5b 100644
--- a/buildroot-external/package/recovery-system/external/overlay/base/etc/sysctl.conf
+++ b/buildroot-external/package/recovery-system/external/overlay/base/etc/sysctl.conf
@@ -15,7 +15,7 @@ user.max_user_namespaces = 0
 
 # disable "deprecated CP15 Barrier instruction" warnings
 # https://www.kernel.org/doc/Documentation/arm64/legacy_instructions.txt
--abi.cp15_barrier = 2
+abi.cp15_barrier = 2
 
 # increase netfilter conntrack maximum hash table size to 256K
 net.netfilter.nf_conntrack_buckets = 65536