diff --git a/packages/modules-runtime-hot/installer.js b/packages/modules-runtime-hot/installer.js
index b2197fb8ea..93745f749d 100644
--- a/packages/modules-runtime-hot/installer.js
+++ b/packages/modules-runtime-hot/installer.js
@@ -204,17 +204,16 @@ makeInstaller = function (options) {
   }
 
   function makeMissingError(id) {
-    var path = String(id)
+    const path = String(id)
       .split('/');
-    var importsFromServer = path.some(function (id) {
-      return id.indexOf('server') !== -1;
-    });
-    var importsFromClient = path.some(function (id) {
-      return id.indexOf('client') !== -1;
-    });
-    if (importsFromServer || importsFromClient) {
+
+    const importsFrom = (location) =>
+      path.some((id) => id.indexOf(location) !== -1);
+
+    if (importsFrom('server') || importsFrom('client')) {
       return new Error('Cannot import module ' + id + ' \n (cross-boundary import) \n see: https://guide.meteor.com/structure.html#special-directories');
     }
+
     return new Error("Cannot find module '" + id + "'");
   }