1 files changed, 6 insertions, 4 deletions
diff --git a/packages/contracts/src/contracts/current/protocol/AssetProxy/ERC20Proxy.sol b/packages/contracts/src/contracts/current/protocol/AssetProxy/ERC20Proxy.sol
index 7c25c9770..79824fbbb 100644
--- a/packages/contracts/src/contracts/current/protocol/AssetProxy/ERC20Proxy.sol
+++ b/packages/contracts/src/contracts/current/protocol/AssetProxy/ERC20Proxy.sol
@@ -53,16 +53,18 @@ contract ERC20Proxy is
     {
         // Data must be intended for this proxy.
         uint256 length = assetMetadata.length;
+
+        require(
+            length == 21,
+            INVALID_METADATA_LENGTH
+        );
+
         require(
             uint8(assetMetadata[length - 1]) == PROXY_ID,
             PROXY_ID_MISMATCH
         );
 
         // Decode metadata.
-        require(
-            length == 21,
-            INVALID_METADATA_LENGTH
-        );
         address token = readAddress(assetMetadata, 0);
 
         // Transfer tokens.