diff --git a/build/lua.zig b/build/lua.zig
index 1c00038..62b090b 100644
--- a/build/lua.zig
+++ b/build/lua.zig
@@ -47,6 +47,7 @@ pub fn configure(
         .target = target,
         .optimize = optimize,
         .link_libc = true,
+        .sanitize_c = if (lang == .lua51) .off else null,
     });
     const library = b.addLibrary(.{
         .name = library_name,