diff --git a/@EMLGenerator/parse_inputs.m b/@EMLGenerator/parse_inputs.m
index b02177f86f2839bdf3571534a5ad059ab258d04e..a0f022eacec3105ca6e6981cf4ffdf71bdd87f54 100644
--- a/@EMLGenerator/parse_inputs.m
+++ b/@EMLGenerator/parse_inputs.m
@@ -42,7 +42,7 @@ for i=1:size(new_inputs,2)
     new_inputs{i}(1) = regexprep(new_inputs{i}(1),'\s','');
     
     valid = regexp(new_inputs{i}(1),'[a-zA-Z][_a-zA-Z0-9]*','match');
-    if isempty(char(new_inputs{i}(1))) || length(valid{1}) == 0 || ~strcmp(new_inputs{i}(1),valid{1})
+    if isempty(char(new_inputs{i}(1))) || length(valid{1}(1)) == 0 || ~strcmp(new_inputs{i}(1),valid{1}(1))
         new_inputs{i}(2) = {'error'};
         %revised_input = cat(2,revised_input,[char(inputs{i}(1)); 'error'])
     end