diff --git a/test-modules/client-tests/src/jvmTest/kotlin/io/mockk/core/ValueClassSupportTest.kt b/test-modules/client-tests/src/jvmTest/kotlin/io/mockk/core/ValueClassSupportTest.kt
index c6e91983e..4826fe852 100644
--- a/test-modules/client-tests/src/jvmTest/kotlin/io/mockk/core/ValueClassSupportTest.kt
+++ b/test-modules/client-tests/src/jvmTest/kotlin/io/mockk/core/ValueClassSupportTest.kt
@@ -3,6 +3,7 @@ package io.mockk.core
 import io.mockk.every
 import io.mockk.mockk
 import kotlin.test.Test
+import kotlin.test.assertEquals
 
 
 class ValueClassSupportTest {
@@ -14,7 +15,9 @@ class ValueClassSupportTest {
             every { func() } returns JavaEnum.A
         }
 
-        mock.func() // throws KotlinReflectionInternalError
+        val result = mock.func() // check this doesn't throw KotlinReflectionInternalError
+
+        assertEquals(JavaEnum.A, result)
     }
 
 }