diff --git a/python/servo/mutation/README.md b/python/servo/mutation/README.md
index bc9c5f2eea6..46dd3287605 100644
--- a/python/servo/mutation/README.md
+++ b/python/servo/mutation/README.md
@@ -5,7 +5,7 @@ The motivation for mutation testing is to test the breadth coverage of tests for
 
 For more info refer [Wiki page](https://en.wikipedia.org/wiki/Mutation_testing).
 
-Here Mutation testing is used to test the coverage of WPT for Servo's browsing engine.
+Here Mutation testing is used to test the coverage of WPT for Servo's browser engine.
 
 ### Mutation Strategy
 This version of mutation testing consists of a Python script that finds random uses of && in Servo's code base and replaces them by ||. The expectation from the WPT tests is to catch this mutation and result in failures when executed on the corresponding code base.