diff --git a/finance/src/main/kotlin/net/corda/finance/contracts/asset/cash/selection/CashSelectionOracleImpl.kt b/finance/src/main/kotlin/net/corda/finance/contracts/asset/cash/selection/CashSelectionOracleImpl.kt
index 111b6045b7..b565a71506 100644
--- a/finance/src/main/kotlin/net/corda/finance/contracts/asset/cash/selection/CashSelectionOracleImpl.kt
+++ b/finance/src/main/kotlin/net/corda/finance/contracts/asset/cash/selection/CashSelectionOracleImpl.kt
@@ -44,6 +44,7 @@ class CashSelectionOracleImpl : AbstractCashSelection(maxRetries = 16, retrySlee
             FROM contract_cash_states ccs, vault_states vs
             WHERE vs.transaction_id = ccs.transaction_id AND vs.output_index = ccs.output_index
                 AND vs.state_status = 0
+                AND vs.is_modifiable = 0
                 AND ccs.ccy_code = ?
                 AND (vs.lock_id = ? OR vs.lock_id is null)
                 """+
diff --git a/finance/src/main/kotlin/net/corda/finance/contracts/asset/cash/selection/CashSelectionSQLServerImpl.kt b/finance/src/main/kotlin/net/corda/finance/contracts/asset/cash/selection/CashSelectionSQLServerImpl.kt
index 10663d1a5e..90c28fd817 100644
--- a/finance/src/main/kotlin/net/corda/finance/contracts/asset/cash/selection/CashSelectionSQLServerImpl.kt
+++ b/finance/src/main/kotlin/net/corda/finance/contracts/asset/cash/selection/CashSelectionSQLServerImpl.kt
@@ -74,7 +74,7 @@ class CashSelectionSQLServerImpl : AbstractCashSelection(maxRetries = 16, retryS
                 ON vs.transaction_id = ccs.transaction_id AND vs.output_index = ccs.output_index
             WHERE
               vs.state_status = 0
-              vs.is_modifiable = 0
+              AND vs.is_modifiable = 0
               AND ccs.ccy_code = ?
               AND (vs.lock_id = ? OR vs.lock_id IS NULL)
             """