diff --git a/windows/security/threat-protection/microsoft-defender-atp/microsoft-defender-atp-linux.md b/windows/security/threat-protection/microsoft-defender-atp/microsoft-defender-atp-linux.md
index 96bb2dc3c9..a9f725d9fc 100644
--- a/windows/security/threat-protection/microsoft-defender-atp/microsoft-defender-atp-linux.md
+++ b/windows/security/threat-protection/microsoft-defender-atp/microsoft-defender-atp-linux.md
@@ -87,6 +87,16 @@ In general you need to take the following steps:
 - Minimum kernel version 2.6.38
 - The `fanotify` kernel option must be enabled
 - Disk space: 650 MB
+- The solution currently provides real-time protection for the following file system types:
+
+  - btrfs
+  - ext2
+  - ext3
+  - ext4
+  - tmpfs
+  - xfs
+
+  More file system types will be added in the future.
 
 After you've enabled the service, you may need to configure your network or firewall to allow outbound connections between it and your endpoints.