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Diffstat (limited to 'nixpkgs/pkgs/applications/misc/doomseeker/default.nix')
-rw-r--r--nixpkgs/pkgs/applications/misc/doomseeker/default.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/pkgs/applications/misc/doomseeker/default.nix b/nixpkgs/pkgs/applications/misc/doomseeker/default.nix
index 1332b265d54c..fbe21dd9a5b2 100644
--- a/nixpkgs/pkgs/applications/misc/doomseeker/default.nix
+++ b/nixpkgs/pkgs/applications/misc/doomseeker/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
 
   enableParallelBuilding = true;
 
-  NIX_CFLAGS_COMPILE = stdenv.lib.optional stdenv.cc.isClang "-Wno-error=format-security";
+  NIX_CFLAGS_COMPILE = stdenv.lib.optionalString stdenv.cc.isClang "-Wno-error=format-security";
 
   meta = with stdenv.lib; {
     homepage = http://doomseeker.drdteam.org/;