diff --git a/FFMpegCore.Test/AudioTest.cs b/FFMpegCore.Test/AudioTest.cs
index aaf25b0..795fedf 100644
--- a/FFMpegCore.Test/AudioTest.cs
+++ b/FFMpegCore.Test/AudioTest.cs
@@ -239,6 +239,7 @@ public void Audio_Pan_ToMono()
 
             Assert.IsTrue(success);
             Assert.AreEqual(1, mediaAnalysis.AudioStreams.Count);
+            Assert.AreEqual("mono", mediaAnalysis.PrimaryAudioStream.ChannelLayout);
         }
 
         [TestMethod, Timeout(10000)]
@@ -256,6 +257,7 @@ public void Audio_Pan_ToMonoNoDefinitions()
 
             Assert.IsTrue(success);
             Assert.AreEqual(1, mediaAnalysis.AudioStreams.Count);
+            Assert.AreEqual("mono", mediaAnalysis.PrimaryAudioStream.ChannelLayout);
         }
 
         [TestMethod, Timeout(10000)]