diff --git a/accelerate-llvm-native/Setup.hs b/accelerate-llvm-native/Setup.hs
index 89aaf189e..8a201c248 100644
--- a/accelerate-llvm-native/Setup.hs
+++ b/accelerate-llvm-native/Setup.hs
@@ -45,7 +45,7 @@ main = defaultMainWithHooks simpleUserHooks
                                  _               -> error "accelerate package was not found or is ambiguous"
 
           dyld_library_name  = mkSharedLibName (hostPlatform lbi) (compilerId (compiler lbi)) (installedUnitId accelerate_pkg)
-          [dyld_install_dir] = case Installed.libraryDynDirs accelerate_pkg of
+          dyld_install_dir:_ = case Installed.libraryDynDirs accelerate_pkg of
                                  [] -> Installed.libraryDirs accelerate_pkg
                                  ds -> ds