diff --git a/build.js b/build.js
index 3506c072d..0c8ff1603 100755
--- a/build.js
+++ b/build.js
@@ -1390,10 +1390,10 @@
     var isMinify = options.indexOf('-m') > -1 || options.indexOf('--minify') > -1;
 
     // flag to specify a mobile build
-    var isMobile = options.indexOf('mobile') > -1;
+    var isMobile = isCSP || options.indexOf('mobile') > -1;
 
     // flag to specify a modern build
-    var isModern = isCSP || isMobile || options.indexOf('modern') > -1;
+    var isModern = isMobile || options.indexOf('modern') > -1;
 
     // flag to specify a modularize build
     var isModularize = options.indexOf('modularize') > -1;
diff --git a/test/test-build.js b/test/test-build.js
index 8b7b141d2..24caba685 100644
--- a/test/test-build.js
+++ b/test/test-build.js
@@ -1093,6 +1093,24 @@
         start();
       });
     });
+
+    asyncTest('`lodash csp`', function() {
+      var sources = [];
+
+      var check = _.after(2, _.once(function() {
+        equal(sources[0], sources[1]);
+        QUnit.start();
+      }));
+
+      var callback = function(data) {
+        // remove copyright header and append source
+        sources.push(data.source.replace(/^\/\**[\s\S]+?\*\/\n/, ''));
+        check();
+      };
+
+      build(['-s', '-d', 'csp'], callback);
+      build(['-s', '-d', 'mobile'], callback);
+    });
   }());
 
   /*--------------------------------------------------------------------------*/