diff --git a/src/vulkan/gen8_cmd_buffer.c b/src/vulkan/gen8_cmd_buffer.c
index e2bbd94ddf8..9c1b6e51b07 100644
--- a/src/vulkan/gen8_cmd_buffer.c
+++ b/src/vulkan/gen8_cmd_buffer.c
@@ -88,10 +88,10 @@ emit_viewport_state(struct anv_cmd_buffer *cmd_buffer,
       struct GENX(SF_CLIP_VIEWPORT) sf_clip_viewport = {
          .ViewportMatrixElementm00 = vp->width / 2,
          .ViewportMatrixElementm11 = vp->height / 2,
-         .ViewportMatrixElementm22 = (vp->maxDepth - vp->minDepth) / 2,
+         .ViewportMatrixElementm22 = 1.0,
          .ViewportMatrixElementm30 = vp->x + vp->width / 2,
          .ViewportMatrixElementm31 = vp->y + vp->height / 2,
-         .ViewportMatrixElementm32 = (vp->maxDepth + vp->minDepth) / 2,
+         .ViewportMatrixElementm32 = 0.0,
          .XMinClipGuardband = -1.0f,
          .XMaxClipGuardband = 1.0f,
          .YMinClipGuardband = -1.0f,