diff --git a/src/modules/shellthread-999999.0a1.0.tm b/src/modules/shellthread-999999.0a1.0.tm
index 0137708f..3b9d4cff 100644
--- a/src/modules/shellthread-999999.0a1.0.tm
+++ b/src/modules/shellthread-999999.0a1.0.tm
@@ -113,7 +113,9 @@ namespace eval shellthread::worker {
             error "shellthread::worker::start_pipe_read - inpipe not configured. Use shellthread::manager::set_pipe_read_from_client to thread::transfer the pipe end"
         }
         set inpipe $readchan
-        chan configure $readchan -blocking 0
+
+        #JMN 2025
+        #chan configure $readchan -blocking 0
         set waitvar ::shellthread::worker::wait($inpipe,[clock micros])
 
         #tcl::chan::fifo2 based pipe seems slower to establish events upon than Memchan