diff --git a/Utils/tmatrix_hdf5.m b/Utils/tmatrix_hdf5.m
index 4da36cc..c3574dc 100644
--- a/Utils/tmatrix_hdf5.m
+++ b/Utils/tmatrix_hdf5.m
@@ -50,7 +50,8 @@
 s = struct('tmatrix', tmatrix, ...
     'embedding', embedding,...
     'scatterer', scatterer, ...
-    'computation', struct('method_parameters', method_parameters));
+    'computation', struct('method_parameters', method_parameters, ...
+                          'analytical_zeros', computation.analytical_zeros));
 
 saveh5(s, f, 'ComplexFormat', {'r','i'}, 'rootname', '', 'Compression', 'deflate');