diff --git a/include/evm.h b/include/evm.h
index 724d8c2..8f3bfe7 100644
--- a/include/evm.h
+++ b/include/evm.h
@@ -53,6 +53,7 @@ enum evm_result_code {
     EVM_BAD_JUMP_DESTINATION = 4,
     EVM_STACK_OVERFLOW = 5,
     EVM_STACK_UNDERFLOW = 6,
+    EVM_REVERT = 7,
 };
 
 struct evm_result;  ///< Forward declaration.
@@ -360,7 +361,8 @@ enum evm_mode {
     EVM_FRONTIER = 0,
     EVM_HOMESTEAD = 1,
     EVM_ANTI_DOS = 2,
-    EVM_CLEARING = 3
+    EVM_CLEARING = 3,
+    EVM_METROPOLIS = 4,
 };