diff --git a/PDP8/tests/pdp8_test.ini b/PDP8/tests/pdp8_test.ini
index 942662e0..f3fdca64 100644
--- a/PDP8/tests/pdp8_test.ini
+++ b/PDP8/tests/pdp8_test.ini
@@ -2,11 +2,16 @@
 ::
 :: Run the paper tape-based diagnostics for the PDP-8 simulator.
 ::
+::
+:: Script is where the diagnostics ought to reside as well.
+cd %~p0
+
+:: Limit maximum diagnostic execution time
+runlimit 2 minutes
+
 :: Maximum memory, extended address element:
 set cpu 32k
 set cpu eae
-:: Script is where the diagnostics ought to reside as well.
-cd %~p0
 
 :: AND, TAD, Operate and basic MQ instruction test (D0AB)
 echof -n "** PDP-8: Basic Instruction Test (1): "