diff --git a/desktop/kde/applications/kstars/pspec.xml b/desktop/kde/applications/kstars/pspec.xml
index 16d2f1cda5..f862449fc3 100644
--- a/desktop/kde/applications/kstars/pspec.xml
+++ b/desktop/kde/applications/kstars/pspec.xml
@@ -49,6 +49,7 @@
             <Dependency versionFrom="13.0.4">mesa-devel</Dependency>
             <Dependency>wcslib-devel</Dependency>
             <Dependency>zlib-devel</Dependency>
+            <Dependency>knotifyconfig-devel</Dependency>
             <Dependency>extra-cmake-modules</Dependency>
         </BuildDependencies>
         <Patches>