diff --git a/cmake/QtCreatorAPI.cmake b/cmake/QtCreatorAPI.cmake
index 4e9e8f4c61d..c0db1ab3854 100644
--- a/cmake/QtCreatorAPI.cmake
+++ b/cmake/QtCreatorAPI.cmake
@@ -854,6 +854,7 @@ function(qtc_copy_to_builddir custom_target_name)
   set(timestampFiles)
 
   qtc_output_binary_dir(_output_binary_dir)
+  set(allFiles ${_arg_FILES})
 
   foreach(srcFile ${_arg_FILES})
     string(MAKE_C_IDENTIFIER "${srcFile}" destinationTimestampFilePart)
@@ -888,6 +889,7 @@ function(qtc_copy_to_builddir custom_target_name)
     endif()
 
     file(GLOB_RECURSE filesToCopy "${srcDirectory}/*")
+    list(APPEND allFiles ${filesToCopy})
     add_custom_command(OUTPUT "${destinationTimestampFileName}"
       COMMAND "${CMAKE_COMMAND}" -E copy_directory "${srcDirectory}" "${destinationDirectory}"
       COMMAND "${CMAKE_COMMAND}" -E touch "${destinationTimestampFileName}"
@@ -898,7 +900,8 @@ function(qtc_copy_to_builddir custom_target_name)
     )
   endforeach()
 
-  add_custom_target("${custom_target_name}" ALL DEPENDS ${timestampFiles})
+  add_custom_target("${custom_target_name}" ALL DEPENDS ${timestampFiles}
+    SOURCES ${allFiles})
 endfunction()
 
 function(qtc_add_resources target resourceName)