diff --git a/src/opensuperclone/CMakeLists.txt b/src/opensuperclone/CMakeLists.txt
index c36691d..0816451 100644
--- a/src/opensuperclone/CMakeLists.txt
+++ b/src/opensuperclone/CMakeLists.txt
@@ -13,6 +13,7 @@ add_custom_command(
     OUTPUT opensuperclone_help.h
     COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/opensuperclone_help.txt opensuperclone_help.txt
     COMMAND xxd -i opensuperclone_help.txt opensuperclone_help.h
+    DEPENDS opensuperclone_help.txt
 )
 LIST(APPEND RESOURCES opensuperclone_help.h)
 
@@ -20,6 +21,7 @@ add_custom_command(
     OUTPUT opensuperclone_glade.h
     COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/opensuperclone.glade opensuperclone.glade
     COMMAND xxd -i opensuperclone.glade opensuperclone_glade.h
+    DEPENDS opensuperclone.glade
 )
 LIST(APPEND RESOURCES opensuperclone_glade.h)
 
diff --git a/src/oscviewer/CMakeLists.txt b/src/oscviewer/CMakeLists.txt
index 506658e..9e48825 100644
--- a/src/oscviewer/CMakeLists.txt
+++ b/src/oscviewer/CMakeLists.txt
@@ -7,6 +7,7 @@ add_custom_command(
     OUTPUT oscviewer_glade.h
     COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/oscviewer.glade oscviewer.glade
     COMMAND xxd -i oscviewer.glade oscviewer_glade.h
+    DEPENDS oscviewer.glade
 )
 LIST(APPEND RESOURCES oscviewer_glade.h)