diff --git a/routing/payment_session.go b/routing/payment_session.go
index 4b766d4c0207..c1fe6e827657 100644
--- a/routing/payment_session.go
+++ b/routing/payment_session.go
@@ -298,6 +298,15 @@ func (p *paymentSession) RequestRoute(maxAmt, feeLimit lnwire.MilliSatoshi,
 			// route, try it for half the amount.
 			maxAmt /= 2
 
+			// If this shard ends up being too large, then we'll
+			// clamp it down to the max shard size if that's set.
+			//
+			// TODO(roasbeef): extend the integrated routing tets w/ info
+			maxShardActive := p.payment.MaxShardAmt != nil
+			if maxShardActive && *p.payment.MaxShardAmt > maxAmt {
+				maxAmt = *p.payment.MaxShardAmt
+			}
+
 			// Put a lower bound on the minimum shard size.
 			if maxAmt < p.minShardAmt {
 				p.log.Debugf("not splitting because minimum "+