diff --git a/src/DotNext.Tests/Threading/AsyncReaderWriterLockTests.cs b/src/DotNext.Tests/Threading/AsyncReaderWriterLockTests.cs
index cfd08bda0..7507e1e21 100644
--- a/src/DotNext.Tests/Threading/AsyncReaderWriterLockTests.cs
+++ b/src/DotNext.Tests/Threading/AsyncReaderWriterLockTests.cs
@@ -226,12 +226,10 @@ public static async Task AcquireReadWriteLockSynchronously()
     {
         using var l = new AsyncReaderWriterLock();
         True(l.TryEnterReadLock(DefaultTimeout));
-        True(l.TryEnterReadLock(DefaultTimeout));
-        Equal(2L, l.CurrentReadCount);
+        Equal(1L, l.CurrentReadCount);
 
         var t = Task.Factory.StartNew(() => l.TryEnterWriteLock(DefaultTimeout), TaskCreationOptions.LongRunning);
         
-        l.Release();
         l.Release();
 
         True(await t);
diff --git a/src/DotNext/Buffers/ByteBuffer.cs b/src/DotNext/Buffers/ByteBuffer.cs
index cfe08725d..cf3c9845a 100644
--- a/src/DotNext/Buffers/ByteBuffer.cs
+++ b/src/DotNext/Buffers/ByteBuffer.cs
@@ -357,7 +357,7 @@ public static T Read7BitEncodedInteger<T>(this ref SpanReader<byte> reader)
         do
         {
             octet = reader.Read();
-        } while (!decoder.Append(octet));
+        } while (decoder.Append(octet));
 
         return decoder.Value;
     }