diff --git a/kdevplatform/cmake/modules/KDevPlatformMacros.cmake b/kdevplatform/cmake/modules/KDevPlatformMacros.cmake
--- a/kdevplatform/cmake/modules/KDevPlatformMacros.cmake
+++ b/kdevplatform/cmake/modules/KDevPlatformMacros.cmake
@@ -120,23 +120,6 @@
         message(FATAL_ERROR "kdevplatform_add_plugin() called without passing any source files. Please use the SOURCES parameter.")
     endif()
 
-    # ensure we recompile the corresponding object files when the json file changes
-    set(dependent_sources )
-    foreach(source ${KDEV_ADD_PLUGIN_SOURCES})
-        get_filename_component(source "${source}" REALPATH)
-        if(EXISTS "${source}")
-            file(STRINGS "${source}" match REGEX "K_PLUGIN_FACTORY_WITH_JSON")
-            if(match)
-                list(APPEND dependent_sources "${source}")
-            endif()
-        endif()
-    endforeach()
-    if(NOT dependent_sources)
-        # fallback to all sources - better safe than sorry...
-        set(dependent_sources ${KDEV_ADD_PLUGIN_SOURCES})
-    endif()
-    set_property(SOURCE ${dependent_sources} APPEND PROPERTY OBJECT_DEPENDS ${json})
-
     add_library(${plugin} MODULE ${KDEV_ADD_PLUGIN_SOURCES})
     set_property(TARGET ${plugin} APPEND PROPERTY AUTOGEN_TARGET_DEPENDS ${json})