diff --git a/wifi/supplicant/1.0/ISupplicantP2pIface.hal b/wifi/supplicant/1.0/ISupplicantP2pIface.hal
index 5a0f6003b8..fb4323caf8 100644
--- a/wifi/supplicant/1.0/ISupplicantP2pIface.hal
+++ b/wifi/supplicant/1.0/ISupplicantP2pIface.hal
@@ -611,7 +611,7 @@ interface ISupplicantP2pIface extends ISupplicantIface {
    *         |SupplicantStatusCode.FAILURE_UNKNOWN|,
    *         |SupplicantStatusCode.FAILURE_IFACE_INVALID|
    */
-  setWfdDeviceInfo(uint8_t[8] info) generates (SupplicantStatus status);
+  setWfdDeviceInfo(uint8_t[6] info) generates (SupplicantStatus status);
 
   /**
    * Creates a NFC handover request message.
diff --git a/wifi/supplicant/1.0/ISupplicantP2pIfaceCallback.hal b/wifi/supplicant/1.0/ISupplicantP2pIfaceCallback.hal
index b6ee57f9fd..8a54bf4b82 100644
--- a/wifi/supplicant/1.0/ISupplicantP2pIfaceCallback.hal
+++ b/wifi/supplicant/1.0/ISupplicantP2pIfaceCallback.hal
@@ -105,7 +105,7 @@ interface ISupplicantP2pIfaceCallback {
       MacAddress srcAddress, MacAddress p2pDeviceAddress,
       uint8_t[8] primaryDeviceType, string deviceName,
       bitfield<WpsConfigMethods> configMethods, uint8_t deviceCapabilities,
-      bitfield<P2pGroupCapabilityMask> groupCapabilities, uint8_t[8] wfdDeviceInfo);
+      bitfield<P2pGroupCapabilityMask> groupCapabilities, uint8_t[6] wfdDeviceInfo);
 
   /**
    * Used to indicate that a P2P device has been lost.
diff --git a/wifi/supplicant/1.0/vts/functional/supplicant_p2p_iface_hidl_test.cpp b/wifi/supplicant/1.0/vts/functional/supplicant_p2p_iface_hidl_test.cpp
index c6cf01f8ab..72a3c4248d 100644
--- a/wifi/supplicant/1.0/vts/functional/supplicant_p2p_iface_hidl_test.cpp
+++ b/wifi/supplicant/1.0/vts/functional/supplicant_p2p_iface_hidl_test.cpp
@@ -81,7 +81,7 @@ class IfaceCallback : public ISupplicantP2pIfaceCallback {
         const hidl_array<uint8_t, 8>& /* primaryDeviceType */,
         const hidl_string& /* deviceName */, uint16_t /* configMethods */,
         uint8_t /* deviceCapabilities */, uint32_t /* groupCapabilities */,
-        const hidl_array<uint8_t, 8>& /* wfdDeviceInfo */) override {
+        const hidl_array<uint8_t, 6>& /* wfdDeviceInfo */) override {
         return Void();
     }
     Return<void> onDeviceLost(