diff --git a/tests/examplefiles/matlab_sample b/tests/examplefiles/matlab_sample
index bb00b51736..86163166b2 100644
--- a/tests/examplefiles/matlab_sample
+++ b/tests/examplefiles/matlab_sample
@@ -25,7 +25,7 @@ disp('a comment symbol, %, in a string');
 function y=myfunc(x)
 y = exp(x);
 
- {%
+ %{
 a block comment
  %}