diff --git a/PeakOTron.py b/PeakOTron.py
index f5906d0457a961e6db03e72d80c8310c9469287d..b170ca7e902e44cee36e8d094349ff865fc70be1 100644
--- a/PeakOTron.py
+++ b/PeakOTron.py
@@ -415,7 +415,7 @@ class PeakOTron:
         conds = []
         
         
-        cond_count = (y_all>1)
+        cond_count = (y_all>1) & (y_hat_all>1)
 
         conds.append(cond_count)
 #         print("Check nsigma = {:3.3f} for chi2".format(self._fit_kwargs["truncate_nsigma0_do"]))
@@ -2420,4 +2420,3 @@ class PeakOTron:
 
 
 
-