diff --git a/build.zig b/build.zig
new file mode 100644
index 0000000..985e427
--- /dev/null
+++ b/build.zig
@@ -0,0 +1,19 @@
+const std = @import("std");
+
+pub fn build(b: *std.Build) void {
+    const optimize = b.standardOptimizeOption(.{});
+    const target = b.standardTargetOptions(.{});
+
+    _ = b.addModule("s2s", .{
+        .source_file = .{ .path = "s2s.zig" },
+    });
+
+    const tests = b.addTest(.{
+        .root_source_file = .{ .path = "s2s.zig" },
+        .target = target,
+        .optimize = optimize,
+    });
+
+    const test_step = b.step("test", "Run unit tests");
+    test_step.dependOn(&tests.step);
+}
diff --git a/s2s.zig b/s2s.zig
index af37271..4d4d3c8 100644
--- a/s2s.zig
+++ b/s2s.zig
@@ -381,7 +381,7 @@ fn recursiveFree(allocator: std.mem.Allocator, comptime T: type, value: *T) void
             }
         },
         .Array => |arr| {
-            for (value.*) |*item| {
+            for (value) |*item| {
                 recursiveFree(allocator, arr.child, item);
             }
         },