diff --git a/value-fixture/test/org/immutables/fixture/modifiable/ModifiablesTest.java b/value-fixture/test/org/immutables/fixture/modifiable/ModifiablesTest.java
index b9ea56624..4705507f6 100644
--- a/value-fixture/test/org/immutables/fixture/modifiable/ModifiablesTest.java
+++ b/value-fixture/test/org/immutables/fixture/modifiable/ModifiablesTest.java
@@ -1,6 +1,8 @@
 package org.immutables.fixture.modifiable;
 
+import static org.hamcrest.core.IsEqual.equalTo;
 import static org.immutables.check.Checkers.*;
+
 import org.junit.Test;
 
 public class ModifiablesTest {
@@ -81,6 +83,11 @@ public void uninitializedEquals() {
     check(c1).not().is(c2);
   }
 
+  @Test
+  public void equalsWithDifferenObjectType() {
+    check(ModifiableCompanion.create()).not().is(equalTo(new Object()));
+  }
+
   @Test
   public void defaults() {
     ModifiableStandalone m = ModifiableStandalone.create();
diff --git a/value-processor/src/org/immutables/value/processor/Modifiables.generator b/value-processor/src/org/immutables/value/processor/Modifiables.generator
index 71dbf4c3e..355bbbf75 100644
--- a/value-processor/src/org/immutables/value/processor/Modifiables.generator
+++ b/value-processor/src/org/immutables/value/processor/Modifiables.generator
@@ -662,7 +662,7 @@ if ([v.name]Value != null) {
 @Override
 public boolean equals([atNullable]Object another) {
   if (this == another) return true;
-  if (!(this instanceof [equalToType])) return false;
+  if (!(another instanceof [equalToType])) return false;
   [equalToType] o = ([equalToType]) another;
   [if type.mandatoryAttributes]
   if (![isInitialized type]() || !o.[isInitialized type]()) {