diff --git a/services/horizon/internal/ingest/processors/liquidity_pools_transaction_processor.go b/services/horizon/internal/ingest/processors/liquidity_pools_transaction_processor.go
index a4e5886e73..c721f9e4ba 100644
--- a/services/horizon/internal/ingest/processors/liquidity_pools_transaction_processor.go
+++ b/services/horizon/internal/ingest/processors/liquidity_pools_transaction_processor.go
@@ -73,6 +73,9 @@ func liquidityPoolsForTransaction(transaction ingest.LedgerTransaction) ([]strin
 }
 
 func dedupeStrings(in []string) []string {
+	if len(in) <= 1 {
+		return in
+	}
 	sort.Strings(in)
 	insert := 1
 	for cur := 1; cur < len(in); cur++ {
diff --git a/services/horizon/internal/ingest/processors/operations_processor.go b/services/horizon/internal/ingest/processors/operations_processor.go
index b74f682a71..8ad023145c 100644
--- a/services/horizon/internal/ingest/processors/operations_processor.go
+++ b/services/horizon/internal/ingest/processors/operations_processor.go
@@ -1036,6 +1036,9 @@ func (operation *transactionOperationWrapper) Participants() ([]xdr.AccountId, e
 
 // dedupeParticipants remove any duplicate ids from `in`
 func dedupeParticipants(in []xdr.AccountId) []xdr.AccountId {
+	if len(in) <= 1 {
+		return in
+	}
 	sort.Slice(in, func(i, j int) bool {
 		return in[i].Address() < in[j].Address()
 	})