diff --git a/Package.swift b/Package.swift
index 022d1b9..15593cc 100644
--- a/Package.swift
+++ b/Package.swift
@@ -18,7 +18,7 @@ let package = Package(
     ],
     targets: [
         .systemLibrary(
-            name: "CZlib",
+            name: "FTZlib",
             providers: [
                 .apt(["zlib1g-dev"]),
                 .brew(["zlib"]),
@@ -26,7 +26,7 @@ let package = Package(
         ),
         .target(
             name: "FileType",
-            dependencies: ["CZlib"]
+            dependencies: ["FTZlib"]
         ),
         .testTarget(
             name: "FileTypeTests",
diff --git a/Sources/CZlib/module.modulemap b/Sources/FTZlib/module.modulemap
similarity index 65%
rename from Sources/CZlib/module.modulemap
rename to Sources/FTZlib/module.modulemap
index 4089437..2dc09eb 100644
--- a/Sources/CZlib/module.modulemap
+++ b/Sources/FTZlib/module.modulemap
@@ -1,4 +1,4 @@
-module CZlib [system] {
+module FTZlib [system] {
     header "shim.h"
     link "z"
     export *
diff --git a/Sources/CZlib/shim.h b/Sources/FTZlib/shim.h
similarity index 100%
rename from Sources/CZlib/shim.h
rename to Sources/FTZlib/shim.h
diff --git a/Sources/FileType/zip+office.swift b/Sources/FileType/zip+office.swift
index 1cee15f..83017da 100644
--- a/Sources/FileType/zip+office.swift
+++ b/Sources/FileType/zip+office.swift
@@ -1,4 +1,4 @@
-import CZlib
+import FTZlib
 import Foundation
 
 struct ZipHeader {