diff --git a/tests/osproc/tstdout.nim b/tests/osproc/tstdout.nim
index 0cb5bd9c08..e3ed3986ac 100644
--- a/tests/osproc/tstdout.nim
+++ b/tests/osproc/tstdout.nim
@@ -1,11 +1,13 @@
 discard """
   output: '''--------------------------------------
+start ta_out
 to stdout
 to stdout
 to stderr
 to stderr
 to stdout
 to stdout
+end ta_out
 --------------------------------------
 '''
 """