diff --git a/office/calligra/calligra/pspec.xml b/office/calligra/calligra/pspec.xml
index d9f7a65909..9f7e3134df 100644
--- a/office/calligra/calligra/pspec.xml
+++ b/office/calligra/calligra/pspec.xml
@@ -60,6 +60,7 @@
 <!--             <Dependency>akonadi-contacts-kf6-devel</Dependency> -->
 <!--             <Dependency>akonadi-kf6-devel</Dependency> -->
             <Dependency>kdiagram-kf6-devel</Dependency>
+            <Dependency>kcalendarcore-kf6-devel</Dependency>
             <Dependency>qca2-qt6-devel</Dependency>
             <Dependency>marble-kf6-devel</Dependency>
             <Dependency>lcms2-devel</Dependency>
@@ -161,6 +162,7 @@
             <Dependency>kcolorscheme-kf6</Dependency>
             <Dependency>qt6-keychain</Dependency>
             <Dependency>kparts-kf6</Dependency>
+            <Dependency>kcalendarcore-kf6</Dependency>
         </RuntimeDependencies>
         <Files>
             <Path fileType="config">/etc/xdg/braindump</Path>