diff --git a/main.go b/main.go
index e4dd924..fb9501f 100644
--- a/main.go
+++ b/main.go
@@ -544,7 +544,7 @@ func WriteDatapoint(mytime int64, deveui string, devaddr string, v uint8, h uint
 			s = fmt.Sprintf("measurement,deveui=%s devaddr=\"%s\",%sh=%di,p=%di,w=%di,t=%.1f,lrrlat=%f,lrrlon=%f%s %d\n", deveui, devaddr, sv, h, int32(p)+825, uint32(w)*5, float32(t)/10, lrrlat, lrrlon, sfw, mytime*60*1000*1000*1000)
 		}
 
-		implausible = (w1 == NOT_PLAUSIBLE_32) || (w2 == NOT_PLAUSIBLE_32) || (w == NOT_PLAUSIBLE_16)
+		implausible = (w1 == NOT_PLAUSIBLE_32) || (w2 == NOT_PLAUSIBLE_32) || (w == NOT_PLAUSIBLE_16) || (w == 0)
 
 		WriteStringToFile(s, deveui, implausible)