diff --git a/code/ryzom/client/src/CMakeLists.txt b/code/ryzom/client/src/CMakeLists.txt
index df91d5c7b..9e5b23461 100644
--- a/code/ryzom/client/src/CMakeLists.txt
+++ b/code/ryzom/client/src/CMakeLists.txt
@@ -75,12 +75,12 @@ IF(APPLE)
   SET_TARGET_PROPERTIES(ryzom_client PROPERTIES OUTPUT_NAME ${MACOSX_BUNDLE_BUNDLE_NAME})
   SET_TARGET_PROPERTIES(ryzom_client PROPERTIES MACOSX_BUNDLE_INFO_PLIST ${MAC_RESOURCES_DIR}/Info.plist)
   ADD_CUSTOM_COMMAND(TARGET ryzom_client PRE_BUILD COMMAND mkdir -p ${RYZOM_RESOURCES_DIR})
-  ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND cp ARGS ${MAC_RESOURCES_DIR}/PkgInfo ${RYZOM_CONTENTS_DIR})
-  ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND cp ARGS ${MAC_RESOURCES_DIR}/ryzom.icns ${RYZOM_RESOURCES_DIR})
-  ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND cp ARGS ${CMAKE_SOURCE_DIR}/ryzom/client/client_default.cfg ${RYZOM_RESOURCES_DIR})
+  ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND cp ARGS -p ${MAC_RESOURCES_DIR}/PkgInfo ${RYZOM_CONTENTS_DIR})
+  ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND cp ARGS -p ${MAC_RESOURCES_DIR}/ryzom.icns ${RYZOM_RESOURCES_DIR})
+  ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND cp ARGS -p ${CMAKE_SOURCE_DIR}/ryzom/client/client_default.cfg ${RYZOM_RESOURCES_DIR})
 
   IF(RYZOM_DATA_DIR)
-    ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND cp -R ARGS ${RYZOM_DATA_DIR} ${RYZOM_RESOURCES_DIR})
+    ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND cp ARGS -RpX ${RYZOM_DATA_DIR} ${RYZOM_RESOURCES_DIR})
   ENDIF(RYZOM_DATA_DIR)
 ENDIF(APPLE)