diff --git a/build.zig b/build.zig
index a330bcc..f735cf8 100644
--- a/build.zig
+++ b/build.zig
@@ -88,6 +88,8 @@ pub fn build(b: *std.Build) void {
         .target = target,
         .optimize = optimize,
     });
+    exe_check.root_module.addImport("interface", interface.module("interface"));
+    exe_check.root_module.addImport("code_point", zg.module("code_point"));
 
     const check = b.step("check", "Check if project compiles");
     check.dependOn(&exe_check.step);