diff --git a/closure/goog/module/modulemanager.js b/closure/goog/module/modulemanager.js
index b53187d30b..1e0fa4481e 100644
--- a/closure/goog/module/modulemanager.js
+++ b/closure/goog/module/modulemanager.js
@@ -378,19 +378,10 @@ goog.module.ModuleManager.prototype.getModuleInfo = function(id) {
 };
 
 
-/**
- * @param {string} fromModule
- * @param {string} toModule
- * @override
- */
+/** @override */
 goog.module.ModuleManager.prototype.addExtraEdge = function(
     fromModule, toModule) {
   'use strict';
-  if (this.getModuleInfo(fromModule).isLoaded()) {
-    throw new Error(
-        `The extra edge ${fromModule} -> ${toModule} cannot be added since ${
-            fromModule} has already been loaded.`);
-  }
   if (!this.extraEdges_[fromModule]) {
     this.extraEdges_[fromModule] = {};
   }
diff --git a/closure/goog/module/modulemanager_test.js b/closure/goog/module/modulemanager_test.js
index 3bb9f52338..6f112d23e9 100644
--- a/closure/goog/module/modulemanager_test.js
+++ b/closure/goog/module/modulemanager_test.js
@@ -1024,26 +1024,6 @@ testSuite({
     assertThrows(() => mm.load('modA'));
   },
 
-  testAddExtraEdge_fromModuleAlreadyLoaded() {
-    const mm = getModuleManager({'modA': [], 'modC': []});
-
-    const loaderCalls = [];
-    mm.setLoader(createModuleLoaderWithExtraEdgesSupport(loaderCalls));
-
-    // Set modA as loaded.
-    mm.beforeLoadModuleCode('modA');
-    mm.setLoaded('modA');
-
-    // Assert error is thrown since modA has already loaded.
-    const e = assertThrows(() => mm.addExtraEdge('modA', 'modB'));
-    assertEquals(
-        'The extra edge modA -> modB cannot be added since modA has already been loaded.',
-        e.message);
-
-    // Assert no error is thrown since modC has not been loaded yet.
-    assertNotThrows(() => mm.addExtraEdge('modC', 'modB'));
-  },
-
   testRemoveExtraEdge() {
     const mm =
         getModuleManager({'modA': [], 'modB': [], 'modC': [], 'modD': []});