diff --git a/AUTHORING_GUIDE.md b/AUTHORING_GUIDE.md
index 6ad99e9e15e..48aabf15ea5 100644
--- a/AUTHORING_GUIDE.md
+++ b/AUTHORING_GUIDE.md
@@ -240,7 +240,7 @@ SQLAlchemy==1.3.12
 If a sample has testing requirements that differ from its runtime requirements
 (such as dependencies on [pytest](http://pytest.org/en/latest/) or other
 testing libraries), the testing requirements may be listed in a separate
-`requirements-testing.txt` file instead of the main `requirements.txt` file.
+`requirements-test.txt` file instead of the main `requirements.txt` file.
 
 ### Region Tags