diff --git a/docs/constant-tau.md b/docs/constant-tau.md
index 60a6607..cecbcb6 100644
--- a/docs/constant-tau.md
+++ b/docs/constant-tau.md
@@ -2,7 +2,7 @@
 
 ## Summary
 
-Implement a constant `math.tau` to hold the tau constant.
+Define a constant value `math.tau` to be the tau constant.
 
 ## Motivation