diff --git a/lib/determine-basal/determine-basal.js b/lib/determine-basal/determine-basal.js
index <HASH>..<HASH> 100644
--- a/lib/determine-basal/determine-basal.js
+++ b/lib/determine-basal/determine-basal.js
@@ -477,7 +477,9 @@ var determine_basal = function determine_basal(glucose_status, currenttemp, iob_
         minPredBG = Math.min(minPredBG, maxCOBPredBG);
     }
     // set snoozeBG to minPredBG if it's higher
-    snoozeBG = round(Math.max(snoozeBG,minPredBG));
+    if (minPredBG < 400) {
+        snoozeBG = round(Math.max(snoozeBG,minPredBG));
+    }
     rT.snoozeBG = snoozeBG;
     //console.error(minPredBG, minIOBPredBG, minUAMPredBG, minCOBPredBG, maxCOBPredBG, snoozeBG);
don't set snoozeBG if minPredBG >= <I>