diff --git a/idea/src/org/jetbrains/jet/codegen/ExpressionCodegen.java b/idea/src/org/jetbrains/jet/codegen/ExpressionCodegen.java
index ee56cc8c2ad..045fa9e7999 100644
--- a/idea/src/org/jetbrains/jet/codegen/ExpressionCodegen.java
+++ b/idea/src/org/jetbrains/jet/codegen/ExpressionCodegen.java
@@ -480,6 +480,21 @@ public class ExpressionCodegen extends JetVisitor {
                     }
                     return;
                 }
+                else if (className.equals("Hashable")) {
+                    if (op.getName().equals("equals")) {
+                        final Type leftType = typeMapper.mapType(bindingContext.getExpressionType(expression.getLeft()));
+                        final Type rightType = typeMapper.mapType(bindingContext.getExpressionType(expression.getRight()));
+                        if (leftType == Type.INT_TYPE && rightType == Type.INT_TYPE) {
+                            gen(expression.getLeft(), Type.INT_TYPE);
+                            gen(expression.getRight(), Type.INT_TYPE);
+                            myStack.push(StackValue.icmp(JetTokens.EQEQ));
+                            return;
+                        }
+                        else {
+                            throw new UnsupportedOperationException("Don't know how to generate equality for these types");
+                        }
+                    }
+                }
                 else {
                     throw new UnsupportedOperationException("Don't know how to generate binary op for class " + className);
                 }
diff --git a/idea/src/org/jetbrains/jet/codegen/StackValue.java b/idea/src/org/jetbrains/jet/codegen/StackValue.java
index e7cb625ca02..ceafe2c8f4f 100644
--- a/idea/src/org/jetbrains/jet/codegen/StackValue.java
+++ b/idea/src/org/jetbrains/jet/codegen/StackValue.java
@@ -128,7 +128,10 @@ public abstract class StackValue {
         @Override
         public void condJump(Label label, boolean jumpIfFalse, InstructionAdapter v) {
             int opcode;
-            if (opToken == JetTokens.GT) {
+            if (opToken == JetTokens.EQEQ) {
+                opcode = jumpIfFalse ? Opcodes.IF_ICMPNE : Opcodes.IF_ICMPEQ;
+            }
+            else if (opToken == JetTokens.GT) {
                 opcode = jumpIfFalse ? Opcodes.IF_ICMPLE : Opcodes.IF_ICMPGT;
             }
             else if (opToken == JetTokens.LT) {