diff --git a/wifi/aidl/aidl_api/android.hardware.wifi/current/android/hardware/wifi/RttCapabilities.aidl b/wifi/aidl/aidl_api/android.hardware.wifi/current/android/hardware/wifi/RttCapabilities.aidl
index 6197585..90caa26 100644
--- a/wifi/aidl/aidl_api/android.hardware.wifi/current/android/hardware/wifi/RttCapabilities.aidl
+++ b/wifi/aidl/aidl_api/android.hardware.wifi/current/android/hardware/wifi/RttCapabilities.aidl
@@ -51,4 +51,5 @@
   long cipherSuitesSupported;
   boolean secureHeLtfSupported;
   boolean rangingFrameProtectionSupported;
+  int maxSupportedSecureHeLtfProtocolVersion;
 }
diff --git a/wifi/aidl/android/hardware/wifi/RttCapabilities.aidl b/wifi/aidl/android/hardware/wifi/RttCapabilities.aidl
index 0cf048d..48e211d 100644
--- a/wifi/aidl/android/hardware/wifi/RttCapabilities.aidl
+++ b/wifi/aidl/android/hardware/wifi/RttCapabilities.aidl
@@ -100,4 +100,8 @@
      * Whether frame protection for ranging is supported.
      */
     boolean rangingFrameProtectionSupported;
+    /**
+     * Maximum supported secure HE-LTF protocol version.
+     */
+    int maxSupportedSecureHeLtfProtocolVersion;
 }
diff --git a/wifi/legacy_headers/include/hardware_legacy/rtt.h b/wifi/legacy_headers/include/hardware_legacy/rtt.h
index 631821d..93ea145 100644
--- a/wifi/legacy_headers/include/hardware_legacy/rtt.h
+++ b/wifi/legacy_headers/include/hardware_legacy/rtt.h
@@ -257,7 +257,7 @@
 typedef struct {
     wifi_rtt_result_v3 rtt_result_v3;
     bool is_ranging_protection_enabled;
-    bool is_secure_ltf_enabled;
+    bool is_secure_he_ltf_enabled;
     wifi_rtt_akm base_akm;
     wifi_rtt_cipher_suite cipher_suite;
     int secure_he_ltf_protocol_version;
@@ -395,7 +395,9 @@
 /* RTT Capabilities v4 (11az secure support) */
 typedef struct {
     wifi_rtt_capabilities_v3 rtt_capab_v3;
-    bool secure_ltf_supported;
+    bool secure_he_ltf_supported;
+    int max_supported_secure_he_ltf_protocol_ver;  // Maximum supported secure HE-LTF protocol
+                                                   // version.
     bool ranging_fame_protection_supported;
     wifi_rtt_akm supported_akms;  // Bitmap of wifi_rtt_akm values indicating the set of supported
                                   // AKMs.