diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -366,7 +366,7 @@
 
 add_executable(kauth_ktexteditor_helper buffer/katesecuretextbuffer.cpp)
 target_link_libraries(kauth_ktexteditor_helper
-  KF5::Auth
+  KF5::AuthCore
 )
 install(TARGETS kauth_ktexteditor_helper DESTINATION ${KAUTH_HELPER_INSTALL_DIR} )
 kauth_install_helper_files(kauth_ktexteditor_helper org.kde.ktexteditor.katetextbuffer root)