diff --git a/nac3artiq/src/codegen.rs b/nac3artiq/src/codegen.rs
index 11e9e911..0ed0be96 100644
--- a/nac3artiq/src/codegen.rs
+++ b/nac3artiq/src/codegen.rs
@@ -678,7 +678,7 @@ fn format_rpc_ret<'ctx>(
                             ctx,
                             generator,
                             &llvm_usize.const_zero(),
-                            llvm_usize.const_int(10, false),
+                            llvm_usize.const_int(4, false),
                         );
                     }
 
@@ -692,6 +692,8 @@ fn format_rpc_ret<'ctx>(
                     //     dims_buf_sz,
                     //     llvm_i1.const_zero(),
                     // );
+                    
+                    // 1 dim: bufsize = 32
 
                     let sz = call_ndarray_calc_size(generator, ctx, &ndarray.dim_sizes(), (None, None));
 
@@ -734,7 +736,8 @@ fn format_rpc_ret<'ctx>(
                         ctx,
                         ndarray_pdata,
                         buffer.base_ptr(ctx, generator),
-                        buffer_size,
+                        llvm_usize.const_int(2, false),
+                        // buffer_size,
                         llvm_i1.const_zero()
                     );