diff --git a/detEdit.m b/detEdit.m
index 8d9d14b..8de47cc 100644
--- a/detEdit.m
+++ b/detEdit.m
@@ -176,6 +176,10 @@ function detEdit(userFunc)
     % whatever was in mySpID before.
     p.mySpID = labels;
 end
+if sum(zID(:,2)==0)>0
+    disp('WARNING: Found zeros in ID labels, removing bad rows.')
+    zID(zID(:,2)==0,:) = [];
+end
 save(fNameList.ID,'zID');
 
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