diff --git a/limitSetting/limitSetting.py b/limitSetting/limitSetting.py
index c59cea89d4eee7f971206b358271a7f20d2746bf..ed76399726b214e2e49d4ecd2efa67d3b3e1b1c9 100644
--- a/limitSetting/limitSetting.py
+++ b/limitSetting/limitSetting.py
@@ -805,6 +805,7 @@ def selectSignal( signalTag , physicsProcessList):
     signalSampleExact = matchFunction(signalTag)
 
     if signalSampleExact is None: signalSampleExact = matchFunction("signal")
+    if signalSampleExact is None: signalSampleExact = matchFunction("ZZd")
 
     # selection via difflib
     #signalSampleExact = difflib.get_close_matches( signalSample  , masterDict[region].keys())[0]