diff --git a/src/main/kotlin/de/gmuth/ipp/client/IppJob.kt b/src/main/kotlin/de/gmuth/ipp/client/IppJob.kt
index b210ff3f..dbba1104 100644
--- a/src/main/kotlin/de/gmuth/ipp/client/IppJob.kt
+++ b/src/main/kotlin/de/gmuth/ipp/client/IppJob.kt
@@ -407,7 +407,7 @@ class IppJob(
             if (it.containsKey("job-name")) append(", name=$name")
             if (it.containsKey("job-impressions-completed")) append(", impressions-completed=$impressionsCompleted")
             if (it.containsKey("job-originating-host-name")) append(", originating-host-name=$originatingHostName")
-            if (it.containsKey("job-originating-user-name") && it.get("job-originating-user-name")!!.tag.`is ValueTag and is not OutOfBandTag`())
+            if (it["job-originating-user-name"]?.tag?.`is ValueTag and is not OutOfBandTag`() == true)
                 append(", originating-user-name=$originatingUserName")
             if (it.containsKey("com.apple.print.JobInfo.PMJobOwner")) append(", appleJobOwner=$appleJobOwner")
             if (it.containsKey("number-of-documents") || it.containsKey("document-count"))