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Diffstat (limited to 'pkgs/os-specific/darwin/apple-source-releases/xnu/default.nix')
-rw-r--r--pkgs/os-specific/darwin/apple-source-releases/xnu/default.nix4
1 files changed, 2 insertions, 2 deletions
diff --git a/pkgs/os-specific/darwin/apple-source-releases/xnu/default.nix b/pkgs/os-specific/darwin/apple-source-releases/xnu/default.nix
index aaa3a1ebe32..afa5dc1c08c 100644
--- a/pkgs/os-specific/darwin/apple-source-releases/xnu/default.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/xnu/default.nix
@@ -81,8 +81,8 @@ appleDerivation ({
     export DSTROOT=$out
   '';
 
-  buildFlags = lib.optionalString headersOnly "exporthdrs";
-  installTargets = lib.optionalString headersOnly "installhdrs";
+  buildFlags = lib.optional headersOnly "exporthdrs";
+  installTargets = lib.optional headersOnly "installhdrs";
 
   postInstall = lib.optionalString headersOnly ''
     mv $out/usr/include $out