1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/development/libraries/science/biology/mirtk/default.nix b/pkgs/development/libraries/science/biology/mirtk/default.nix
index e6c58b96e5c..3b3eba39cc3 100644
--- a/pkgs/development/libraries/science/biology/mirtk/default.nix
+++ b/pkgs/development/libraries/science/biology/mirtk/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
     fetchSubmodules = true;
   };
 
-  cmakeFlags = "-DWITH_VTK=ON -DBUILD_ALL_MODULES=ON";
+  cmakeFlags = [ "-DWITH_VTK=ON" "-DBUILD_ALL_MODULES=ON" ];
 
   doCheck = true;