diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c
index 1181c840..10134bf9 100644
--- a/libs/vkd3d-shader/spirv.c
+++ b/libs/vkd3d-shader/spirv.c
@@ -3973,6 +3973,12 @@ static void vkd3d_dxbc_compiler_emit_interpolation_decorations(struct vkd3d_dxbc
             break;
         case VKD3DSIM_LINEAR:
             break;
+        case VKD3DSIM_LINEAR_CENTROID:
+            vkd3d_spirv_build_op_decorate(builder, id, SpvDecorationCentroid, NULL, 0);
+            break;
+        case VKD3DSIM_LINEAR_NOPERSPECTIVE:
+            vkd3d_spirv_build_op_decorate(builder, id, SpvDecorationNoPerspective, NULL, 0);
+            break;
         case VKD3DSIM_LINEAR_SAMPLE:
             vkd3d_spirv_enable_capability(builder, SpvCapabilitySampleRateShading);
             vkd3d_spirv_build_op_decorate(builder, id, SpvDecorationSample, NULL, 0);