diff --git a/ArbOwner.sol b/ArbOwner.sol
index e04442b..047c342 100644
--- a/ArbOwner.sol
+++ b/ArbOwner.sol
@@ -366,7 +366,7 @@ interface ArbOwner {
     /// @notice Sets the max amount of stylus contract fragments that can be used to deploy a stylus contract
     /// @notice Available in ArbOS version 60 and above
     function setMaxStylusContractFragments(
-        uint16 maxFragments
+        uint8 maxFragments
     ) external;
 
     /// Emitted when a successful call is made to this precompile
diff --git a/ArbOwnerPublic.sol b/ArbOwnerPublic.sol
index 3223893..8d4e192 100644
--- a/ArbOwnerPublic.sol
+++ b/ArbOwnerPublic.sol
@@ -80,7 +80,7 @@ interface ArbOwnerPublic {
 
     /// @notice Get the max amount of stylus contract fragments that can be used to deploy a stylus contract
     /// @notice Available in ArbOS version 60 and above
-    function getMaxStylusContractFragments() external view returns (uint16);
+    function getMaxStylusContractFragments() external view returns (uint8);
 
     event ChainOwnerRectified(address rectifiedOwner);
 }