diff --git a/contracts/src/test/kotlin/com/r3corda/contracts/asset/CashTests.kt b/contracts/src/test/kotlin/com/r3corda/contracts/asset/CashTests.kt
index bc7e11a9f7..a4adf2afbb 100644
--- a/contracts/src/test/kotlin/com/r3corda/contracts/asset/CashTests.kt
+++ b/contracts/src/test/kotlin/com/r3corda/contracts/asset/CashTests.kt
@@ -39,7 +39,7 @@ class CashTests {
             }
             tweak {
                 output { outState }
-                // No command commanduments
+                // No command arguments
                 this `fails with` "required com.r3corda.contracts.asset.FungibleAsset.Commands.Move command"
             }
             tweak {
diff --git a/core/src/main/kotlin/com/r3corda/core/testing/LedgerDSLInterpreter.kt b/core/src/main/kotlin/com/r3corda/core/testing/LedgerDSLInterpreter.kt
index 27c24606b4..d41ad3cd60 100644
--- a/core/src/main/kotlin/com/r3corda/core/testing/LedgerDSLInterpreter.kt
+++ b/core/src/main/kotlin/com/r3corda/core/testing/LedgerDSLInterpreter.kt
@@ -19,7 +19,7 @@ interface LedgerDSLInterpreter<R, out T : TransactionDSLInterpreter<R>> : Output
 /**
  * This is the class the top-level primitives deal with. It delegates all other primitives to the contained interpreter.
  * This way we have a decoupling of the DSL "AST" and the interpretation(s) of it. Note how the delegation forces
- * covariance of the TransactionInterpreter parameter
+ * covariance of the TransactionInterpreter parameter.
  *
  * TODO (Kotlin 1.1): Use type synonyms to make the type params less unwieldy
  */
diff --git a/core/src/main/kotlin/com/r3corda/core/testing/TransactionDSLInterpreter.kt b/core/src/main/kotlin/com/r3corda/core/testing/TransactionDSLInterpreter.kt
index d013c923fb..f8421a8326 100644
--- a/core/src/main/kotlin/com/r3corda/core/testing/TransactionDSLInterpreter.kt
+++ b/core/src/main/kotlin/com/r3corda/core/testing/TransactionDSLInterpreter.kt
@@ -36,7 +36,7 @@ import java.time.Instant
  * Put convenience functions in [TransactionDSL] instead. There are some cases where the overloads would clash with the
  * Interpreter interface, in these cases define a "backing" function in the interface instead (e.g. [_command]).
  *
- * This way the responsibility of providing a nice frontend DSL and the implementation(s) are separated
+ * This way the responsibility of providing a nice frontend DSL and the implementation(s) are separated.
  */
 interface TransactionDSLInterpreter<R> : OutputStateLookup {
     val ledgerInterpreter: LedgerDSLInterpreter<R, TransactionDSLInterpreter<R>>
@@ -56,7 +56,7 @@ class TransactionDSL<R, out T : TransactionDSLInterpreter<R>> (val interpreter:
 
     fun input(stateLabel: String) = input(retrieveOutputStateAndRef(ContractState::class.java, stateLabel).ref)
     /**
-     * Adds the passed in state as a non-verified transaction output to the ledger and adds that as an input
+     * Adds the passed in state as a non-verified transaction output to the ledger and adds that as an input.
      */
     fun input(state: ContractState) {
         val transaction = ledgerInterpreter.unverifiedTransaction(null) {