diff --git a/_episodes/02-assertions.md b/_episodes/02-assertions.md
index 3a7c350..5b0dec4 100644
--- a/_episodes/02-assertions.md
+++ b/_episodes/02-assertions.md
@@ -13,7 +13,7 @@ keypoints:
 - "The `assert` keyword is used to set an assertion."
 - "Assertions halt execution if the argument is false."
 - "Assertions do nothing if the argument is true."
-- "The `numpy.testing` module provides tools numeric testing."
+- "The `numpy.testing` module provides tools for numeric testing."
 - "Assertions are the building blocks of tests."
 ---