diff --git a/server.go b/server.go
index a888c2e9..8d2429eb 100644
--- a/server.go
+++ b/server.go
@@ -1579,6 +1579,7 @@ func (s *server) OpenChannel(peerID int32, nodeKey *btcec.PublicKey,
 	var (
 		targetPeer  *peer
 		pubKeyBytes []byte
+		err         error
 	)
 
 	// If the user is targeting the peer by public key, then we'll need to
@@ -1608,6 +1609,17 @@ func (s *server) OpenChannel(peerID int32, nodeKey *btcec.PublicKey,
 	// is what's used internally when deciding upon coin selection.
 	fundingFeePerWeight := fundingFeePerByte / blockchain.WitnessScaleFactor
 
+	// If the fee rate wasn't high enough to cleanly convert to weight,
+	// then we'll use a default confirmation target.
+	if fundingFeePerWeight == 0 {
+		estimator := s.cc.feeEstimator
+		fundingFeePerWeight, err = estimator.EstimateFeePerWeight(6)
+		if err != nil {
+			errChan <- err
+			return updateChan, errChan
+		}
+	}
+
 	// Spawn a goroutine to send the funding workflow request to the
 	// funding manager. This allows the server to continue handling queries
 	// instead of blocking on this request which is exported as a