diff --git a/test/command/2994.md b/test/command/2994.md
index df46900b62ee..b6b2d1ed9b97 100644
--- a/test/command/2994.md
+++ b/test/command/2994.md
@@ -1,5 +1,5 @@
 ```
-% pandoc -f markdown -t docx | pandoc -f docx -t markdown --track-changes=all
+% pandoc -f markdown -t docx -o - | pandoc -f docx -t markdown --track-changes=all
 I want [I left a comment.]{.comment-start id="0"
 author="Jesse Rosenthal" date="2016-05-09T16:13:00Z"}some text to have a
 comment []{.comment-end id="0"}on it.