diff --git a/desktop/kde/plasma/plasma-workspace/pspec.xml b/desktop/kde/plasma/plasma-workspace/pspec.xml
index b5d98ac137..61f0f349cc 100644
--- a/desktop/kde/plasma/plasma-workspace/pspec.xml
+++ b/desktop/kde/plasma/plasma-workspace/pspec.xml
@@ -134,6 +134,7 @@
             <Dependency versionFrom="6.9.0">qt6-positioning-devel</Dependency>
             <Dependency versionFrom="6.9.0">qt6-virtualkeyboard-devel</Dependency>
             <Dependency versionFrom="6.5.0">plasma-activities-stats-devel</Dependency>
+            <Dependency>knighttime-devel</Dependency>
         </BuildDependencies>
         <Patches>
             <!--dirty fix for qt5.6.0 -->
@@ -242,6 +243,7 @@
             <Dependency versionFrom="6.9.0">qt6-declarative</Dependency>
             <Dependency versionFrom="6.9.0">qt6-positioning</Dependency>
             <Dependency versionFrom="6.5.0">plasma-activities-stats</Dependency>
+            <Dependency>knighttime</Dependency>
         </RuntimeDependencies>
         <Files>
             <Path fileType="config">/etc/pam.d</Path>