diff --git a/chain/types/blockheader.go b/chain/types/blockheader.go
index 5fb72545b..1a1d5b875 100644
--- a/chain/types/blockheader.go
+++ b/chain/types/blockheader.go
@@ -184,7 +184,7 @@ func PowerCmp(eproof ElectionProof, mpow, totpow BigInt) bool {
 	rhs = rhs.Mul(rhs, blocksPerEpoch.Int)
 	
 	// return true if lhs is less than or equal to rhs
-	return lhs.Cmp(rhs) < 1
+	return lhs.Cmp(rhs) <= 0
 }
 
 func (t *Ticket) Equals(ot *Ticket) bool {