diff --git a/DRAMSys/analyzer/scripts/tests.py b/DRAMSys/analyzer/scripts/tests.py
index 7de48996..add37a4c 100644
--- a/DRAMSys/analyzer/scripts/tests.py
+++ b/DRAMSys/analyzer/scripts/tests.py
@@ -250,7 +250,7 @@ def phase_transitions_are_valid(connection):
         validTransitions['PDNP'] = set(['ACT', 'REFA'])
         validTransitions['SREF'] = set(['ACT'])
     else:
-        validTransitions['PRE'] = set(['ACT'])
+        validTransitions['PRE'] = set(['ACT','PRE_ALL'])
         validTransitions['PRE_ALL'] = set(['REFA'])
         validTransitions['ACT'] = set(['RD', 'RDA', 'WR', 'WRA', 'PRE_ALL'])