diff --git a/Sources/ZIP/ZipLocalHeader.swift b/Sources/ZIP/ZipLocalHeader.swift
index 69023c37..5422da1a 100644
--- a/Sources/ZIP/ZipLocalHeader.swift
+++ b/Sources/ZIP/ZipLocalHeader.swift
@@ -29,8 +29,6 @@ struct ZipLocalHeader {
     private(set) var ntfsAtime: UInt64?
     private(set) var ntfsCtime: UInt64?
 
-    let headerSize: Int
-
     init(_ pointerData: DataWithPointer) throws {
         // Check signature.
         guard pointerData.uint32() == 0x04034b50
@@ -53,7 +51,6 @@ struct ZipLocalHeader {
 
         let fileNameLength = pointerData.uint16().toInt()
         let extraFieldLength = pointerData.uint16().toInt()
-        self.headerSize = 30 + fileNameLength + extraFieldLength
 
         guard let fileName = ZipCommon.getStringField(pointerData, fileNameLength, useUtf8)
             else { throw ZipError.wrongTextField }