diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_huc.c b/drivers/gpu/drm/i915/pxp/intel_pxp_huc.c
index 64609d1b1c0f7..23431c36b60b7 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_huc.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_huc.c
@@ -38,7 +38,7 @@ int intel_pxp_huc_load_and_auth(struct intel_pxp *pxp)
 	huc_in.header.command_id  = PXP43_CMDID_START_HUC_AUTH;
 	huc_in.header.status      = 0;
 	huc_in.header.buffer_len  = sizeof(huc_in.huc_base_address);
-	huc_in.huc_base_address   = huc_phys_addr;
+	huc_in.huc_base_address   = cpu_to_le64(huc_phys_addr);
 
 	err = intel_pxp_tee_stream_message(pxp, client_id, fence_id,
 					   &huc_in, sizeof(huc_in),