diff --git a/lambdabuild.zig b/lambdabuild.zig
index e151089..71baff9 100644
--- a/lambdabuild.zig
+++ b/lambdabuild.zig
@@ -93,7 +93,8 @@ pub fn configureBuild(b: *std.Build, exe: *std.Build.Step.Compile, function_name
     const iam_step = b.step("awslambda_iam", "Create/Get IAM role for function");
     iam_step.dependOn(&iam.step);
 
-    var region = @import("lambdabuild/Region.zig"){
+    const region = try b.allocator.create(@import("lambdabuild/Region.zig"));
+    region.* = .{
         .allocator = b.allocator,
         .specified_region = b.option([]const u8, "region", "Region to use [default is autodetect from environment/config]"),
     };
@@ -104,7 +105,7 @@ pub fn configureBuild(b: *std.Build, exe: *std.Build.Step.Compile, function_name
         .package = package_step.packagedFileLazyPath(),
         .arch = exe.root_module.resolved_target.?.result.cpu.arch,
         .iam_step = iam,
-        .region = &region,
+        .region = region,
     });
     deploy.step.dependOn(&package_step.step);
 
@@ -118,7 +119,7 @@ pub fn configureBuild(b: *std.Build, exe: *std.Build.Step.Compile, function_name
     const invoke = Invoke.create(b, .{
         .name = function_name,
         .payload = payload,
-        .region = &region,
+        .region = region,
     });
     invoke.step.dependOn(&deploy.step);
     const run_step = b.step("awslambda_run", "Run the app in AWS lambda");