diff --git a/build.zig b/build.zig
index fd89fa3dfb5c4c076483ea203b95805508384c33..139d17818965142166a9090926c426e5fccf69d7 100644
--- a/build.zig
+++ b/build.zig
@@ -4,6 +4,7 @@ const deps = @import("./deps.zig");
 pub fn build(b: *std.Build) void {
     const target = b.standardTargetOptions(.{});
     const mode = b.option(std.builtin.Mode, "mode", "") orelse .Debug;
+    const disable_llvm = b.option(bool, "disable_llvm", "use the non-llvm zig codegen") orelse false;
 
     const gen_step = b.step("generate", "");
     const gen_cmd = b.addSystemCommand(&.{ "bun", "./generate.ts" });
@@ -19,6 +20,8 @@ pub fn build(b: *std.Build) void {
         .optimize = mode,
     });
     deps.addAllTo(tests);
+    tests.use_llvm = !disable_llvm;
+    tests.use_lld = !disable_llvm;
 
     const test_step = b.step("test", "Run all library tests");
     const tests_run = b.addRunArtifact(tests);