diff --git a/packages/psd/src/sections/LayerAndMaskInformation/AdditionalLayerInfo/index.ts b/packages/psd/src/sections/LayerAndMaskInformation/AdditionalLayerInfo/index.ts
index c534ad6..032199b 100644
--- a/packages/psd/src/sections/LayerAndMaskInformation/AdditionalLayerInfo/index.ts
+++ b/packages/psd/src/sections/LayerAndMaskInformation/AdditionalLayerInfo/index.ts
@@ -96,6 +96,7 @@ function getAliLengthFieldSizeType(
       case "FEid":
       case "FXid":
       case "PxSD":
+      case "cinf": // Undocumented in Adobe's docs
         return "u64";
     }
   }