diff --git a/desktop/kde/applications/akonadi-calendar/pspec.xml b/desktop/kde/applications/akonadi-calendar/pspec.xml
index 930a6d8967..71af9b4eee 100755
--- a/desktop/kde/applications/akonadi-calendar/pspec.xml
+++ b/desktop/kde/applications/akonadi-calendar/pspec.xml
@@ -31,6 +31,7 @@
             <Dependency>knotifications-devel</Dependency>
             <Dependency>kunitconversion-devel</Dependency>
             <Dependency>kmime-devel</Dependency>
+            <Dependency>syntax-highlighting-devel</Dependency>
             <Dependency versionFrom="26.04.3">kimap-devel</Dependency>
             <Dependency versionFrom="26.04.3">akonadi-devel</Dependency>
             <Dependency versionFrom="26.04.3">libkleo-devel</Dependency>