diff --git a/src/org/mozilla/javascript/NativeReflect.java b/src/org/mozilla/javascript/NativeReflect.java
index ada3b48467..d7f1a05618 100644
--- a/src/org/mozilla/javascript/NativeReflect.java
+++ b/src/org/mozilla/javascript/NativeReflect.java
@@ -111,6 +111,8 @@ private static Object apply(Context cx, Scriptable scope, Scriptable thisObj, Ob
 
         if (args[1] instanceof Scriptable) {
             thisObj = (Scriptable) args[1];
+        } else if (ScriptRuntime.isPrimitive(args[1])) {
+            thisObj = cx.newObject(scope, "Object", new Object[] {args[1]});
         }
 
         if (ScriptRuntime.isSymbol(args[2])) {
diff --git a/testsrc/org/mozilla/javascript/tests/es6/NativeReflectTest.java b/testsrc/org/mozilla/javascript/tests/es6/NativeReflectTest.java
index 5651d80853..bc853bb331 100644
--- a/testsrc/org/mozilla/javascript/tests/es6/NativeReflectTest.java
+++ b/testsrc/org/mozilla/javascript/tests/es6/NativeReflectTest.java
@@ -17,6 +17,29 @@ public void testToString() {
     @Test
     public void apply() {
         testDouble(1.0, "Reflect.apply(Math.floor, undefined, [1.75])");
+        testString(
+                "hello",
+                "Reflect.apply(String.fromCharCode, undefined, [104, 101, 108, 108, 111])");
+        testInt(4, "Reflect.apply(RegExp.prototype.exec, /ab/, ['confabulation']).index");
+        testString("i", "Reflect.apply(''.charAt, 'ponies', [3])");
+    }
+
+    @Test
+    public void applyString() {
+        testString("foo", "Reflect.apply(String.prototype.toString, 'foo', [])");
+        testString("oo", "Reflect.apply(String.prototype.substring, 'foo', [1])");
+    }
+
+    @Test
+    public void applyNumber() {
+        testString("1.234567e+3", "Reflect.apply(Number.prototype.toExponential, 1234.567, [])");
+        testString("1.23e+3", "Reflect.apply(Number.prototype.toExponential, 1234.567, [2])");
+    }
+
+    @Test
+    public void applyBoolean() {
+        testString("true", "Reflect.apply(Boolean.prototype.toString, true, [])");
+        testString("false", "Reflect.apply(Boolean.prototype.toString, false, [])");
     }
 
     @Test
@@ -425,4 +448,17 @@ private static void testDouble(double expected, String js) {
                     return null;
                 });
     }
+
+    private static void testInt(int expected, String js) {
+        Utils.runWithAllOptimizationLevels(
+                cx -> {
+                    cx.setLanguageVersion(Context.VERSION_ES6);
+                    final Scriptable scope = cx.initStandardObjects();
+
+                    Object result = cx.evaluateString(scope, js, "test", 1, null);
+                    assertEquals(expected, ((Integer) result).intValue());
+
+                    return null;
+                });
+    }
 }