diff --git a/Tzkt.Api/Repositories/RewardsRepository.cs b/Tzkt.Api/Repositories/RewardsRepository.cs
index a9a51275..09159b5f 100644
--- a/Tzkt.Api/Repositories/RewardsRepository.cs
+++ b/Tzkt.Api/Repositories/RewardsRepository.cs
@@ -1139,7 +1139,7 @@ public async Task<object[][]> GetDelegatorRewards(
             {
                 switch (field)
                 {
-                    case "cycle": columns.Add(@"""Cycle"""); break;
+                    case "cycle": columns.Add(@"dc.""Cycle"""); break;
                     case "delegatedBalance": columns.Add(@"dc.""DelegatedBalance"""); break;
                     case "stakedBalance": columns.Add(@"dc.""StakedBalance"""); break;
                     case "baker": columns.Add(@"dc.""BakerId"""); break;
@@ -1195,7 +1195,7 @@ public async Task<object[][]> GetDelegatorRewards(
                     case "nonceRevelationRewardsStakedEdge": columns.Add(@"""NonceRevelationRewardsStakedEdge"""); break;
                     case "nonceRevelationRewardsStakedShared": columns.Add(@"""NonceRevelationRewardsStakedShared"""); break;
                     case "nonceRevelationLosses": columns.Add(@"""NonceRevelationLosses"""); break;
-                    case "quote": columns.Add(@"""Cycle"""); break;
+                    case "quote": columns.Add(@"dc.""Cycle"""); break;
 
                     #region deprecated
                     case "blockRewardsLiquid": columns.Add(@"""BlockRewardsDelegated"""); break;
@@ -1604,7 +1604,7 @@ public async Task<object[]> GetDelegatorRewards(
 
             switch (field)
             {
-                case "cycle": columns.Add(@"""Cycle"""); break;
+                case "cycle": columns.Add(@"dc.""Cycle"""); break;
                 case "delegatedBalance": columns.Add(@"dc.""DelegatedBalance"""); break;
                 case "stakedBalance": columns.Add(@"dc.""StakedBalance"""); break;
                 case "baker": columns.Add(@"dc.""BakerId"""); break;
@@ -1660,7 +1660,7 @@ public async Task<object[]> GetDelegatorRewards(
                 case "nonceRevelationRewardsStakedEdge": columns.Add(@"""NonceRevelationRewardsStakedEdge"""); break;
                 case "nonceRevelationRewardsStakedShared": columns.Add(@"""NonceRevelationRewardsStakedShared"""); break;
                 case "nonceRevelationLosses": columns.Add(@"""NonceRevelationLosses"""); break;
-                case "quote": columns.Add(@"""Cycle"""); break;
+                case "quote": columns.Add(@"dc.""Cycle"""); break;
 
                 #region deprecated
                 case "blockRewardsLiquid": columns.Add(@"""BlockRewardsDelegated"""); break;
diff --git a/Tzkt.Api/Repositories/TokensRepository.cs b/Tzkt.Api/Repositories/TokensRepository.cs
index e363f75f..0850bba6 100644
--- a/Tzkt.Api/Repositories/TokensRepository.cs
+++ b/Tzkt.Api/Repositories/TokensRepository.cs
@@ -943,7 +943,7 @@ async Task<IEnumerable<dynamic>> QueryHistoricalTokenBalancesAsync(int level, To
 
             var sql = new SqlBuilder()
                 .Append($@"SELECT {select} FROM (")
-                    .Append(@"SELECT ROW_NUMBER() over (ORDER BY ""TokenId"", ""AccountId"") as ""Id"", ""TokenId"", ""AccountId"", SUM(""Amount"")::text AS ""Balance"" FROM (")
+                    .Append(@"SELECT ROW_NUMBER() over (ORDER BY ""TokenId"", ""AccountId"") as ""Id"", ""TokenId"", ""AccountId"", SUM(""Amount"") AS ""Balance"" FROM (")
                         
                         .Append(@"SELECT tr.""TokenId"", tr.""FromId"" AS ""AccountId"", -tr.""Amount"" AS ""Amount"" FROM ""TokenTransfers"" as tr")
                         .Append(@"INNER JOIN ""Tokens"" AS t ON t.""Id"" = tr.""TokenId""")