diff --git a/libs/vkd3d-shader/hlsl_sm4.c b/libs/vkd3d-shader/hlsl_sm4.c
index b344cf87..08828b81 100644
--- a/libs/vkd3d-shader/hlsl_sm4.c
+++ b/libs/vkd3d-shader/hlsl_sm4.c
@@ -1031,6 +1031,10 @@ static void write_sm4_expr(struct hlsl_ctx *ctx,
                     write_sm4_binary_op(buffer, VKD3D_SM4_OP_DIV, &expr->node, arg1, arg2);
                     break;
 
+                case HLSL_OP2_MAX:
+                    write_sm4_binary_op(buffer, VKD3D_SM4_OP_MAX, &expr->node, arg1, arg2);
+                    break;
+
                 case HLSL_OP2_MUL:
                     write_sm4_binary_op(buffer, VKD3D_SM4_OP_MUL, &expr->node, arg1, arg2);
                     break;