diff --git a/src/README.md b/src/README.md
index 58925e7977..641e012d5d 100644
--- a/src/README.md
+++ b/src/README.md
@@ -99,7 +99,7 @@ ripple-fork
 ## protobuf
 
 Ripple's fork of protobuf. We've changed some names in order to support the
-unity-style of build (a single .cpp addded to the project, instead of
+unity-style of build (a single .cpp added to the project, instead of
 linking to a separately built static library).
 
 Repository