diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2055406..5d66df8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -62,6 +62,7 @@ find_program(GLIB_COMPILE_RESOURCES NAMES glib-compile-resources REQUIRED)
 set(GRESOURCE_C   megapixels.gresource.c)
 set(GRESOURCE_XML data/me.gapixels.Megapixels.gresource.xml)
 
+file(GLOB datas data/*)
 add_custom_command(
         OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${GRESOURCE_C}
         WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/data
@@ -72,6 +73,7 @@ add_custom_command(
         ../${GRESOURCE_XML}
         VERBATIM
         MAIN_DEPENDENCY ${GRESOURCE_XML}
+        DEPENDS ${datas}
 )
 
 add_custom_target(