diff --git a/core/src/main/kotlin/com/r3corda/core/testing/Generators.kt b/core/src/main/kotlin/com/r3corda/core/testing/Generators.kt
index a294a409f0..3f98a4e7af 100644
--- a/core/src/main/kotlin/com/r3corda/core/testing/Generators.kt
+++ b/core/src/main/kotlin/com/r3corda/core/testing/Generators.kt
@@ -94,6 +94,6 @@ val durationGenerator = generator { random, status ->
 }
 
 val timestampGenerator = generator { random, status ->
-    Timestamp(InstantGenerator().generate(random, status), DurationGenerator().generate(random, status))
+    Timestamp(instantGenerator.generate(random, status), durationGenerator.generate(random, status))
 }