diff --git a/common/print_parameters.m b/common/print_parameters.m
index 05eac9d..215df4a 100644
--- a/common/print_parameters.m
+++ b/common/print_parameters.m
@@ -2,6 +2,9 @@ function print_parameters(params, units)
 align = 32;
 names = fieldnames(params);
 for n=1:length(names),
+	if isempty(params.(names{n}))
+		continue;
+	end
 	fprintf('%s', names{n});
 	remain = align - length(names{n});
 	if remain < 0