diff --git a/src/arm/lithium-codegen-arm.h b/src/arm/lithium-codegen-arm.h
index 8b5b94f..58aa93d 100644
--- a/src/arm/lithium-codegen-arm.h
+++ b/src/arm/lithium-codegen-arm.h
@@ -119,6 +119,7 @@
                                        SwVfpRegister flt_scratch,
                                        DwVfpRegister dbl_scratch);
   int ToInteger32(LConstantOperand* op) const;
+  Smi* ToSmi(LConstantOperand* op) const;
   double ToDouble(LConstantOperand* op) const;
   Operand ToOperand(LOperand* op);
   MemOperand ToMemOperand(LOperand* op) const;