diff --git a/tests/testinit.sas b/tests/testinit.sas
index a1564fe..7c5e363 100644
--- a/tests/testinit.sas
+++ b/tests/testinit.sas
@@ -19,7 +19,7 @@
 %macro loglevel();
   %if "&_debug"="2477" or "&_debug"="fields,log,trace" %then %do;
     %put debug mode activated;
-    options mprint;
+    options mprint mprintnest;
   %end;
 %mend loglevel;