diff --git a/Dockerfiles/agent2/windows/Dockerfile b/Dockerfiles/agent2/windows/Dockerfile
index 0896c6c51c..6eb240e68e 100644
--- a/Dockerfiles/agent2/windows/Dockerfile
+++ b/Dockerfiles/agent2/windows/Dockerfile
@@ -50,7 +50,7 @@ RUN Set-Location -Path $env:SystemDrive\.; `
     New-Item -Force -ItemType directory -Path $env:ZBX_HOME\modules | Out-Null; `
     New-Item -Force -ItemType directory -Path $env:ZBX_HOME\buffer | Out-Null; `
     `
-	net accounts /MaxPWAge:unlimited; `
+    net accounts /MaxPWAge:unlimited; `
     net user /add zabbix /expire:never /passwordreq:no; `
     $acl = Get-Acl -Path $env:ZBX_HOME; `
     $ace = New-Object Security.AccessControl.FileSystemAccessRule ('zabbix', 'Modify', 'ContainerInherit, ObjectInherit', 'InheritOnly', 'Allow'); `
diff --git a/Dockerfiles/build-mysql/centos/Dockerfile b/Dockerfiles/build-mysql/centos/Dockerfile
index a7ff5fda03..dde25b2979 100644
--- a/Dockerfiles/build-mysql/centos/Dockerfile
+++ b/Dockerfiles/build-mysql/centos/Dockerfile
@@ -62,6 +62,7 @@ RUN set -eux && \
             --enable-webservice \
             --with-ldap \
             --with-libcurl \
+#            Not available for CentOS 8
 #            --with-libmodbus \
             --with-libpcre2 \
             --with-libxml2 \