diff --git a/src/main/kotlin/no/nav/security/mock/oauth2/grant/ClientCredentialsGrantHandler.kt b/src/main/kotlin/no/nav/security/mock/oauth2/grant/ClientCredentialsGrantHandler.kt
index d03c8f85..9f9c3300 100644
--- a/src/main/kotlin/no/nav/security/mock/oauth2/grant/ClientCredentialsGrantHandler.kt
+++ b/src/main/kotlin/no/nav/security/mock/oauth2/grant/ClientCredentialsGrantHandler.kt
@@ -26,7 +26,7 @@ internal class ClientCredentialsGrantHandler(
             tokenType = "Bearer",
             accessToken = accessToken.serialize(),
             expiresIn = accessToken.expiresIn(),
-            scope = tokenRequest.scope.toString()
+            scope = tokenRequest.scope?.toString()
         )
     }
 }