--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -232,7 +232,7 @@ else()
 endif()
 
 add_custom_command( TARGET docbookl10nhelper POST_BUILD
-    COMMAND $<TARGET_FILE:KF5::docbookl10nhelper>
+    COMMAND KF5::docbookl10nhelper
     "${DOCBOOKXSL_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/customization/xsl"
     "${CMAKE_CURRENT_BINARY_DIR}/customization/xsl"
 )
