diff --git a/README.md b/README.md
index 053c9fa24..9bc8382a2 100644
--- a/README.md
+++ b/README.md
@@ -94,7 +94,7 @@ Some example modules that can be excluded are:
 - **exports/global**: Exclude the attachment of global jQuery variables ($ and jQuery) to the window.
 - **exports/amd**: Exclude the AMD definition.
 
-Removing sizzle is not supported on the 1.x branch.
+Removing Sizzle is not supported on the `compat` branch.
 
 The build process shows a message for each dependent module it excludes or includes.
 
diff --git a/build/tasks/build.js b/build/tasks/build.js
index 3c457d0bf..1c76f6eff 100644
--- a/build/tasks/build.js
+++ b/build/tasks/build.js
@@ -160,7 +160,7 @@ module.exports = function( grunt ) {
 				if ( exclude ) {
 					// Can't exclude sizzle on this branch
 					if ( module === "sizzle" ) {
-						grunt.log.error( "Sizzle cannot be excluded on the 1.x branch." );
+						grunt.log.error( "Sizzle cannot be excluded on the compat branch." );
 
 					// Can't exclude certain modules
 					} else if ( minimum.indexOf( module ) === -1 ) {