diff --git a/Gruntfile.js b/Gruntfile.js
index 02bba034..2b1b1c92 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -43,7 +43,8 @@ module.exports = function(grunt) {
 		},
 
 		clean: {
-			data: ['temp']
+			data: ['temp'],
+			tests: ['tests/zones'],
 		},
 
 		exec: {
diff --git a/tasks/data.js b/tasks/data.js
index 37be2001..1b5166c3 100644
--- a/tasks/data.js
+++ b/tasks/data.js
@@ -6,6 +6,9 @@ module.exports = function (grunt) {
 
 		if (!grunt.option('dirty-run')) {
 			grunt.task.run('clean:data');
+			if (version === 'latest') {
+				grunt.task.run('clean:tests');
+			}
 		}
 
 		grunt.task.run([