diff --git a/node/src/test/kotlin/com/r3corda/node/services/WalletWithCashTest.kt b/node/src/test/kotlin/com/r3corda/node/services/WalletWithCashTest.kt
index 100a072288..afc95f777f 100644
--- a/node/src/test/kotlin/com/r3corda/node/services/WalletWithCashTest.kt
+++ b/node/src/test/kotlin/com/r3corda/node/services/WalletWithCashTest.kt
@@ -4,6 +4,7 @@ import com.r3corda.contracts.cash.Cash
 import com.r3corda.contracts.cash.cashBalances
 import com.r3corda.contracts.testing.fillWithSomeTestCash
 import com.r3corda.core.contracts.*
+import com.r3corda.core.crypto.SecureHash
 import com.r3corda.core.node.ServiceHub
 import com.r3corda.core.node.services.testing.MockKeyManagementService
 import com.r3corda.core.node.services.testing.MockStorageService
@@ -14,6 +15,7 @@ import com.r3corda.node.services.wallet.NodeWalletService
 import org.junit.After
 import org.junit.Before
 import org.junit.Test
+import org.assertj.core.api.Assertions.assertThatThrownBy;
 import java.util.*
 import kotlin.test.assertEquals
 import kotlin.test.assertNull
@@ -96,4 +98,25 @@ class WalletWithCashTest {
 
         // TODO: Flesh out these tests as needed.
     }
+
+
+    @Test
+    fun addingSeveralTransactionsOfTheSameLinearStateThreadFails() {
+        val (wallet, services) = make()
+
+        val freshKey = services.keyManagementService.freshKey()
+
+        val thread = SecureHash.sha256("thread")
+        val dummyIssue = TransactionType.General.Builder(notary = DUMMY_NOTARY).apply {
+            addOutputState(DummyLinearState(thread = thread, participants = listOf(freshKey.public)))
+            signWith(freshKey)
+        }.toSignedTransaction()
+
+        wallet.notify(dummyIssue.tx)
+        assertEquals(1, wallet.currentWallet.states.size)
+        assertThatThrownBy {
+            wallet.notify(dummyIssue.tx)
+        }
+        assertEquals(1, wallet.currentWallet.states.size)
+    }
 }