See <https://phabricator.kde.org/D26818>

diff --git a/src/ksieveui/CMakeLists.txt b/src/ksieveui/CMakeLists.txt
--- a/src/ksieveui/CMakeLists.txt
+++ b/src/ksieveui/CMakeLists.txt
@@ -255,6 +255,7 @@ target_link_libraries(KF5KSieveUi
     KF5::KManageSieve
     KF5::KSieve
     KF5::PimCommon
+    KF5::SyntaxHighlighting
     PRIVATE
     KF5::Libkdepim
     KF5::Archive
@@ -269,7 +270,6 @@ target_link_libraries(KF5KSieveUi
     KF5::I18n
     KF5::SonnetUi
     Qt::PrintSupport
-    KF5::SyntaxHighlighting
     )

 set_target_properties(KF5KSieveUi PROPERTIES
--
2.33.0