diff --git a/ft_write_tsv.m b/ft_write_tsv.m
index d62a82e..48dc695 100644
--- a/ft_write_tsv.m
+++ b/ft_write_tsv.m
@@ -63,6 +63,8 @@ function ft_write_tsv(filename, tsv)
   % write boolean as 'True' or 'False'
   if isempty(val)
     val = 'n/a';
+  elseif isstruct(val)
+    val = 'n/a';
   elseif isnan(val)
     val = 'n/a';
   elseif islogical(val)