diff --git a/src/lib/CMakeLists.txt b/src/lib/CMakeLists.txt
index bf729fc..95bf4c3 100644
--- a/src/lib/CMakeLists.txt
+++ b/src/lib/CMakeLists.txt
@@ -1,86 +1,87 @@
 ecm_create_qm_loader(syntax_highlighting_QM_LOADER syntaxhighlighting5_qt)
 
 set(syntax_highlighting_srcs
     abstracthighlighter.cpp
     context.cpp
     contextswitch.cpp
     definitiondownloader.cpp
     foldingregion.cpp
     format.cpp
     htmlhighlighter.cpp
     keywordlist.cpp
     rule.cpp
     definition.cpp
     repository.cpp
     state.cpp
     syntaxhighlighter.cpp
     theme.cpp
     wildcardmatcher.cpp
     themedata.cpp
     ${syntax_highlighting_QM_LOADER}
 )
 ecm_qt_declare_logging_category(syntax_highlighting_srcs
     HEADER ksyntaxhighlighting_logging.h
     IDENTIFIER KSyntaxHighlighting::Log
     CATEGORY_NAME org.kde.ksyntaxhighlighting
 )
 
 add_library(KF5SyntaxHighlighting ${syntax_highlighting_srcs} $<TARGET_OBJECTS:SyntaxHighlightingData>)
 generate_export_header(KF5SyntaxHighlighting BASE_NAME KSyntaxHighlighting)
 set_target_properties(KF5SyntaxHighlighting PROPERTIES
     VERSION ${SyntaxHighlighting_VERSION_STRING}
     SOVERSION ${SyntaxHighlighting_SOVERSION}
     EXPORT_NAME SyntaxHighlighting
 )
 target_include_directories(KF5SyntaxHighlighting INTERFACE "$<INSTALL_INTERFACE:${KDE_INSTALL_INCLUDEDIR_KF5}/KSyntaxHighlighting;${KDE_INSTALL_INCLUDEDIR_KF5}>")
 target_include_directories(KF5SyntaxHighlighting PUBLIC "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR};${CMAKE_CURRENT_BINARY_DIR};>")
 target_link_libraries(KF5SyntaxHighlighting LINK_PUBLIC Qt5::Gui LINK_PRIVATE Qt5::Network)
 
 ecm_generate_headers(SyntaxHighlighting_HEADERS
     HEADER_NAMES
         AbstractHighlighter
         Definition
+        DefinitionDownloader
         FoldingRegion
         Format
         Repository
         State
         SyntaxHighlighter
         Theme
     REQUIRED_HEADERS SyntaxHighlighting_HEADERS
 )
 
 install(TARGETS KF5SyntaxHighlighting EXPORT KF5SyntaxHighlightingTargets ${INSTALL_TARGETS_DEFAULT_ARGS})
 install(FILES
     ${SyntaxHighlighting_HEADERS}
     ${CMAKE_CURRENT_BINARY_DIR}/ksyntaxhighlighting_export.h
     DESTINATION ${KDE_INSTALL_INCLUDEDIR_KF5}/KSyntaxHighlighting)
 
 if(BUILD_QCH)
     ecm_add_qch(
         KF5SyntaxHighlighting_QCH
         NAME KSyntaxHighlighting
         BASE_NAME KF5SyntaxHighlighting
         VERSION ${KF5_VERSION}
         ORG_DOMAIN org.kde
         SOURCES # using only public headers, to cover only public API
             ${SyntaxHighlighting_HEADERS}
         MD_MAINPAGE "${CMAKE_SOURCE_DIR}/README.md"
         LINK_QCHS
             Qt5Core_QCH
             Qt5Gui_QCH
         BLANK_MACROS
             KSYNTAXHIGHLIGHTING_EXPORT
             KSYNTAXHIGHLIGHTING_DEPRECATED
         TAGFILE_INSTALL_DESTINATION ${KDE_INSTALL_QTQCHDIR}
         QCH_INSTALL_DESTINATION ${KDE_INSTALL_QTQCHDIR}
         COMPONENT Devel
     )
 endif()
 ecm_generate_pri_file(
     BASE_NAME KSyntaxHighlighting LIB_NAME
     KF5SyntaxHighlighting
     DEPS "gui"
     FILENAME_VAR PRI_FILENAME
     INCLUDE_INSTALL_DIR ${KDE_INSTALL_INCLUDEDIR_KF5}/KSyntaxHighlighting
 )
 install(FILES ${PRI_FILENAME} DESTINATION ${ECM_MKSPECS_INSTALL_DIR})