diff --git a/changelog b/changelog
--- a/changelog
+++ b/changelog
@@ -1,3 +1,7 @@
+zip-archive 0.3.2.4
+
+  * Make build-tools stanza conditional on non-windows. Closes #44.
+
 zip-archive 0.3.2.3
 
   * Use custom-setup stanza and specify build-tools.  Closes #41.
diff --git a/zip-archive.cabal b/zip-archive.cabal
--- a/zip-archive.cabal
+++ b/zip-archive.cabal
@@ -1,5 +1,5 @@
 Name:                zip-archive
-Version:             0.3.2.3
+Version:             0.3.2.4
 Cabal-Version:       >= 1.10
 Build-type:          Custom
 Synopsis:            Library for creating and modifying zip archives.
@@ -47,7 +47,7 @@
     cpp-options:     -D_WINDOWS
   else
     Build-depends:   unix
-  Build-tools:       unzip
+    Build-tools:     unzip
 
 custom-setup
   setup-depends: base, Cabal