diff --git a/examples/demo_jsonlab_basic.m b/examples/demo_jsonlab_basic.m
index 233e53292a702ba2b183e002877bbfa13cf786c5..2bfe807a340dcc9b56731f4b456e998a1dd9533a 100644
--- a/examples/demo_jsonlab_basic.m
+++ b/examples/demo_jsonlab_basic.m
@@ -6,6 +6,10 @@ rngstate = rand ('state');
 randseed=hex2dec('623F9A9E');
 clear data2json json2data
 
+if(exist('isequaln')==0)
+    isequaln=@isequal;
+end
+
 fprintf(1,'\n%%=================================================\n')
 fprintf(1,'%%  a simple scalar value \n')
 fprintf(1,'%%=================================================\n\n')