diff --git a/mockito-kotlin/src/main/kotlin/com/nhaarman/mockitokotlin2/internal/CreateInstance.kt b/mockito-kotlin/src/main/kotlin/com/nhaarman/mockitokotlin2/internal/CreateInstance.kt
index 4d9b5f5b..03acadba 100644
--- a/mockito-kotlin/src/main/kotlin/com/nhaarman/mockitokotlin2/internal/CreateInstance.kt
+++ b/mockito-kotlin/src/main/kotlin/com/nhaarman/mockitokotlin2/internal/CreateInstance.kt
@@ -38,6 +38,7 @@ inline fun <reified T : Any> createInstance(): T {
         Long::class -> 0L as T
         Float::class -> 0f as T
         Double::class -> 0.0 as T
+        String::class -> "" as T
         else -> createInstance(T::class)
     }
 }
diff --git a/tests/src/test/kotlin/test/createinstance/NullCasterTest.kt b/tests/src/test/kotlin/test/createinstance/NullCasterTest.kt
index b214fcc0..6352805f 100644
--- a/tests/src/test/kotlin/test/createinstance/NullCasterTest.kt
+++ b/tests/src/test/kotlin/test/createinstance/NullCasterTest.kt
@@ -11,7 +11,7 @@ class NullCasterTest : TestBase() {
     @Test
     fun createInstance() {
         /* When */
-        val result = createInstance(String::class)
+        val result = createInstance(Any::class)
 
         /* Then */
         expect(result).toBeNull()
@@ -20,12 +20,12 @@ class NullCasterTest : TestBase() {
     @Test
     fun kotlinAcceptsNullValue() {
         /* Given */
-        val s: String = createInstance(String::class)
+        val mockObject: Any = createInstance(Any::class)
 
         /* When */
-        acceptNonNullableString(s)
+        acceptNonNullableObject(mockObject)
     }
 
-    private fun acceptNonNullableString(@Suppress("UNUSED_PARAMETER") s: String) {
+    private fun acceptNonNullableObject(@Suppress("UNUSED_PARAMETER") mockObject: Any) {
     }
 }