diff --git a/addon/tern/worker.js b/addon/tern/worker.js
index 0164762f59..02d7ff2fee 100644
--- a/addon/tern/worker.js
+++ b/addon/tern/worker.js
@@ -24,7 +24,7 @@ function getFile(file, c) {
 }
 
 function startServer(defs, plugins, scripts) {
-  if (scripts) importScripts.apply(null, scripts);
+  if (scripts) importScripts(...scripts);
 
   server = new tern.Server({
     getFile: getFile,
diff --git a/mode/haxe/haxe.js b/mode/haxe/haxe.js
index 28f9b00ec3..859278d376 100644
--- a/mode/haxe/haxe.js
+++ b/mode/haxe/haxe.js
@@ -192,7 +192,7 @@ CodeMirror.defineMode("haxe", function(config, parserConfig) {
     for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
   }
   function cont() {
-    pass.apply(null, arguments);
+    pass(...arguments);
     return true;
   }
   function register(varname) {
diff --git a/mode/javascript/javascript.js b/mode/javascript/javascript.js
index e8ace32d89..cd52b9e534 100644
--- a/mode/javascript/javascript.js
+++ b/mode/javascript/javascript.js
@@ -195,7 +195,7 @@ CodeMirror.defineMode("javascript", function(config, parserConfig) {
     for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
   }
   function cont() {
-    pass.apply(null, arguments);
+    pass(...arguments);
     return true;
   }
   function register(varname) {
diff --git a/mode/rust/rust.js b/mode/rust/rust.js
index c7530b6cc6..7da4201e67 100644
--- a/mode/rust/rust.js
+++ b/mode/rust/rust.js
@@ -132,7 +132,7 @@ CodeMirror.defineMode("rust", function() {
     for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
   }
   function cont() {
-    pass.apply(null, arguments);
+    pass(...arguments);
     return true;
   }
 
diff --git a/mode/tiki/tiki.js b/mode/tiki/tiki.js
index e789163dc7..d84a88eed1 100644
--- a/mode/tiki/tiki.js
+++ b/mode/tiki/tiki.js
@@ -194,7 +194,7 @@ function pass() {
 }
 
 function cont() {
-  pass.apply(null, arguments);
+  pass(...arguments);
   return true;
 }
 
diff --git a/mode/xml/xml.js b/mode/xml/xml.js
index 53285c848c..d4efee4957 100644
--- a/mode/xml/xml.js
+++ b/mode/xml/xml.js
@@ -172,7 +172,7 @@ CodeMirror.defineMode("xml", function(config, parserConfig) {
     for (var i = arguments.length - 1; i >= 0; i--) curState.cc.push(arguments[i]);
   }
   function cont() {
-    pass.apply(null, arguments);
+    pass(...arguments);
     return true;
   }
 
diff --git a/test/doc_test.js b/test/doc_test.js
index 3e04e155b3..5c2d5a6db2 100644
--- a/test/doc_test.js
+++ b/test/doc_test.js
@@ -54,7 +54,7 @@
       var successful = false;
 
       try {
-        run.apply(null, editors);
+        run(...editors);
         successful = true;
       } finally {
         if ((debug && !successful) || verbose) {