diff --git a/Sources/ZIPFoundation/Data+Serialization.swift b/Sources/ZIPFoundation/Data+Serialization.swift
index f008a9ae..12340f90 100644
--- a/Sources/ZIPFoundation/Data+Serialization.swift
+++ b/Sources/ZIPFoundation/Data+Serialization.swift
@@ -84,6 +84,7 @@ extension Data {
         let bytesRead = fread(bytes, 1, size, file)
         let error = ferror(file)
         if error > 0 {
+            bytes.deallocate()
             throw DataError.unreadableFile
         }
         #if swift(>=4.1)