diff --git a/src/intel/vulkan/anv_device.c b/src/intel/vulkan/anv_device.c
index 8004b0fbc5b..fe87c233d15 100644
--- a/src/intel/vulkan/anv_device.c
+++ b/src/intel/vulkan/anv_device.c
@@ -4448,7 +4448,7 @@ VkResult anv_GetCalibratedTimestampsEXT(
    for (d = 0; d < timestampCount; d++) {
       switch (pTimestampInfos[d].timeDomain) {
       case VK_TIME_DOMAIN_DEVICE_EXT:
-         ret = anv_gem_reg_read(device->fd, TIMESTAMP | 1,
+         ret = anv_gem_reg_read(device->fd, TIMESTAMP | I915_REG_READ_8B_WA,
                                 &pTimestamps[d]);
 
          if (ret != 0) {