diff --git a/build.js b/build.js
index a65315a9c..913ba8a70 100644
--- a/build.js
+++ b/build.js
@@ -266,7 +266,7 @@
     'escapeHtmlChar': ['htmlEscapes'],
     'htmlUnescapes': ['htmlEscapes'],
     'isArray': ['reNative'],
-    'isEqual': ['indicatorObject'],
+    'isEqual': ['indicatorObject', 'objectTypes'],
     'isObject': ['objectTypes'],
     'isPlainObject': ['reNative'],
     'isRegExp': ['objectTypes'],
@@ -3320,8 +3320,8 @@
             '      otherType = typeof b;',
             '',
             '  if (a === a &&',
-            "      (!a || (type != 'function' && type != 'object')) &&",
-            "      (!b || (otherType != 'function' && otherType != 'object'))) {",
+            "      !(a && objectTypes[type]) &&",
+            "      !(b && objectTypes[otherType])) {",
             '    return false;',
             '  }',
             '  if (a == null || b == null) {',
diff --git a/lodash.js b/lodash.js
index 71677b2da..7bb007547 100644
--- a/lodash.js
+++ b/lodash.js
@@ -1934,8 +1934,8 @@
 
       // exit early for unlike primitive values
       if (a === a &&
-          (!a || (type != 'function' && type != 'object')) &&
-          (!b || (otherType != 'function' && otherType != 'object'))) {
+          !(a && objectTypes[type]) &&
+          !(b && objectTypes[otherType])) {
         return false;
       }
       // exit early for `null` and `undefined`, avoiding ES3's Function#call behavior