diff --git a/src/writer.jl b/src/writer.jl
index 0a51aa1..1b6ab75 100644
--- a/src/writer.jl
+++ b/src/writer.jl
@@ -273,7 +273,7 @@ Base.write(w::ZipWriter, x::UInt8) = write(w, Ref(x))
 
 # WriteOffsetTracker
 Base.isopen(w::WriteOffsetTracker) = !w.bad
-Base.close(w::WriteOffsetTracker) = nothing # this should never be called
+Base.close(w::WriteOffsetTracker) = nothing # this protects the underlying stream from being closed by TranscodingStreams
 Base.isreadable(w::WriteOffsetTracker) = false
 Base.write(w::WriteOffsetTracker, x::UInt8) = write(w, Ref(x))
 
@@ -745,4 +745,4 @@ function write_footer(
     after_write_offset = io.offset
     @argcheck after_write_offset == tailsize + end_of_central_dir
     tailsize + size_of_central_dir
-end
\ No newline at end of file
+end