1 files changed, 3 insertions, 2 deletions
diff --git a/nixpkgs/pkgs/development/libraries/kde-frameworks/default.nix b/nixpkgs/pkgs/development/libraries/kde-frameworks/default.nix
index ef1171b17601..d18dea1c3817 100644
--- a/nixpkgs/pkgs/development/libraries/kde-frameworks/default.nix
+++ b/nixpkgs/pkgs/development/libraries/kde-frameworks/default.nix
@@ -42,13 +42,13 @@ let
       propagate = out:
         let setupHook = { writeScript }:
               writeScript "setup-hook" ''
-                if [ "$hookName" != postHook ]; then
+                if [ "''${hookName:-}" != postHook ]; then
                     postHooks+=("source @dev@/nix-support/setup-hook")
                 else
                     # Propagate $dev so that this setup hook is propagated
                     # But only if there is a separate $dev output
                     if [ "''${outputDev:?}" != out ]; then
-                        propagatedBuildInputs="$propagatedBuildInputs @dev@"
+                        propagatedBuildInputs="''${propagatedBuildInputs-} @dev@"
                     fi
                 fi
               '';
@@ -97,6 +97,7 @@ let
       breeze-icons = callPackage ./breeze-icons.nix {};
       kapidox = callPackage ./kapidox.nix {};
       karchive = callPackage ./karchive.nix {};
+      kcalendarcore = callPackage ./kcalendarcore.nix {};
       kcodecs = callPackage ./kcodecs.nix {};
       kconfig = callPackage ./kconfig.nix {};
       kcoreaddons = callPackage ./kcoreaddons.nix {};