diff --git a/dataforge-io/src/jvmTest/kotlin/hep/dataforge/io/FileEnvelopeTest.kt b/dataforge-io/src/jvmTest/kotlin/hep/dataforge/io/FileEnvelopeTest.kt
index ccd9fb60..f77e4903 100644
--- a/dataforge-io/src/jvmTest/kotlin/hep/dataforge/io/FileEnvelopeTest.kt
+++ b/dataforge-io/src/jvmTest/kotlin/hep/dataforge/io/FileEnvelopeTest.kt
@@ -35,17 +35,6 @@ class FileEnvelopeTest {
         }
     }
 
-    @Test
-    fun testFileWriteReadTagless() {
-        Global.io.run {
-            val tmpPath = Files.createTempFile("dataforge_test_tagless", ".df")
-            writeEnvelopeFile(tmpPath, envelope, envelopeFormat = TaglessEnvelopeFormat)
-            println(tmpPath.toUri())
-            val restored: Envelope = readEnvelopeFile(tmpPath)!!
-            assertTrue { envelope.contentEquals(restored) }
-        }
-    }
-
     @Test
     fun testFileWriteTagged() {
         val tmpPath = Files.createTempFile("dataforge_test", ".df")
@@ -65,14 +54,14 @@ class FileEnvelopeTest {
     @Test
     fun testFileWriteTagless() {
         val tmpPath = Files.createTempFile("dataforge_test", ".df")
-        Global.io.writeEnvelopeFile(tmpPath, envelope, format = TaglessEnvelopeFormat)
+        Global.io.writeEnvelopeFile(tmpPath, envelope, envelopeFormat = TaglessEnvelopeFormat)
         assertTrue { tmpPath.toFile().length() > 0 }
     }
 
     @Test
     fun testFileWriteReadTagless() {
         val tmpPath = Files.createTempFile("dataforge_test", ".df")
-        Global.io.writeEnvelopeFile(tmpPath, envelope, format = TaglessEnvelopeFormat)
+        Global.io.writeEnvelopeFile(tmpPath, envelope, envelopeFormat = TaglessEnvelopeFormat)
         println(tmpPath.toUri())
         val restored: Envelope = Global.io.readEnvelopeFile(tmpPath)!!
         assertTrue { envelope.contentEquals(restored) }