diff --git a/code/CMakeModules/nel.cmake b/code/CMakeModules/nel.cmake
index 941351315..711ecb94c 100644
--- a/code/CMakeModules/nel.cmake
+++ b/code/CMakeModules/nel.cmake
@@ -334,6 +334,7 @@ MACRO(NL_SETUP_RYZOM_DEFAULT_OPTIONS)
   OPTION(WITH_RYZOM_PATCH         "Enable Ryzom in-game patch support"            OFF)
   OPTION(WITH_RYZOM_CUSTOM_PATCH_SERVER "Only use patch server from CFG file"     OFF)
   OPTION(WITH_RYZOM_STEAM         "Enable Steam features"                         OFF)
+  OPTION(WITH_RYZOM_SANDBOX       "Enable Sandbox under OS X"                     OFF)
 ENDMACRO(NL_SETUP_RYZOM_DEFAULT_OPTIONS)
 
 MACRO(NL_SETUP_SNOWBALLS_DEFAULT_OPTIONS)
diff --git a/code/ryzom/client/macosx/ryzom.entitlements b/code/ryzom/client/macosx/ryzom.entitlements
new file mode 100644
index 000000000..ee95ab7e5
--- /dev/null
+++ b/code/ryzom/client/macosx/ryzom.entitlements
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.app-sandbox</key>
+	<true/>
+	<key>com.apple.security.network.client</key>
+	<true/>
+</dict>
+</plist>
diff --git a/code/ryzom/client/src/CMakeLists.txt b/code/ryzom/client/src/CMakeLists.txt
index 990f8cfae..44165e56d 100644
--- a/code/ryzom/client/src/CMakeLists.txt
+++ b/code/ryzom/client/src/CMakeLists.txt
@@ -91,6 +91,12 @@ IF(WITH_RYZOM_CLIENT)
       ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND cp ARGS -RpX ${RYZOM_DATA_DIR} ${RYZOM_RESOURCES_DIR})
     ENDIF()
 
+    IF(WITH_RYZOM_SANDBOX)
+      SET(ENTITLEMENTS --entitlements ${MAC_RESOURCES_DIR}/ryzom.entitlements)
+    ELSE()
+      SET(ENTITLEMENTS)
+    ENDIF()
+
     IF(TARGET crash_report)
       ADD_DEPENDENCIES(ryzom_client crash_report)
 
@@ -98,7 +104,7 @@ IF(WITH_RYZOM_CLIENT)
       ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND cp -p ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/crash_report ${RYZOM_CONTENTS_DIR}/MacOS/CrashReport)
 
       IF(CODESIGN_ALLOCATE AND APPLE_CERTIFICATE)
-        ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND CODESIGN_ALLOCATE=${CODESIGN_ALLOCATE} codesign -fs "${APPLE_CERTIFICATE}" "${RYZOM_CONTENTS_DIR}/MacOS/CrashReport" COMMENT "Signing CrashReport executable...")
+        ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND CODESIGN_ALLOCATE=${CODESIGN_ALLOCATE} codesign ${ENTITLEMENTS} -fs "${APPLE_CERTIFICATE}" "${RYZOM_CONTENTS_DIR}/MacOS/CrashReport" COMMENT "Signing CrashReport executable...")
       ENDIF()
     ENDIF()
 
@@ -109,7 +115,7 @@ IF(WITH_RYZOM_CLIENT)
       ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND cp -p ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/ryzom_client_patcher ${RYZOM_CONTENTS_DIR}/MacOS/RyzomClientPatcher)
 
       IF(CODESIGN_ALLOCATE AND APPLE_CERTIFICATE)
-        ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND CODESIGN_ALLOCATE=${CODESIGN_ALLOCATE} codesign -fs "${APPLE_CERTIFICATE}" "${RYZOM_CONTENTS_DIR}/MacOS/RyzomClientPatcher" COMMENT "Signing RyzomClientPatcher executable...")
+        ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND CODESIGN_ALLOCATE=${CODESIGN_ALLOCATE} codesign ${ENTITLEMENTS} -fs "${APPLE_CERTIFICATE}" "${RYZOM_CONTENTS_DIR}/MacOS/RyzomClientPatcher" COMMENT "Signing RyzomClientPatcher executable...")
       ENDIF()
     ENDIF()
 
@@ -120,7 +126,7 @@ IF(WITH_RYZOM_CLIENT)
       ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND cp -p ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/ryzom_configuration_qt ${RYZOM_CONTENTS_DIR}/MacOS/RyzomConfiguration)
 
       IF(CODESIGN_ALLOCATE AND APPLE_CERTIFICATE)
-        ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND CODESIGN_ALLOCATE=${CODESIGN_ALLOCATE} codesign -fs "${APPLE_CERTIFICATE}" "${RYZOM_CONTENTS_DIR}/MacOS/RyzomConfiguration" COMMENT "Signing RyzomConfiguration executable...")
+        ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND CODESIGN_ALLOCATE=${CODESIGN_ALLOCATE} codesign ${ENTITLEMENTS} -fs "${APPLE_CERTIFICATE}" "${RYZOM_CONTENTS_DIR}/MacOS/RyzomConfiguration" COMMENT "Signing RyzomConfiguration executable...")
       ENDIF()
     ENDIF()
 
@@ -134,7 +140,7 @@ IF(WITH_RYZOM_CLIENT)
     ENDIF()
 
     IF(CODESIGN_ALLOCATE AND APPLE_CERTIFICATE)
-      ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND CODESIGN_ALLOCATE=${CODESIGN_ALLOCATE} codesign -fs "${APPLE_CERTIFICATE}" "${RYZOM_OUTPUT_DIR}" COMMENT "Signing Ryzom bundle...")
+      ADD_CUSTOM_COMMAND(TARGET ryzom_client POST_BUILD COMMAND CODESIGN_ALLOCATE=${CODESIGN_ALLOCATE} codesign ${ENTITLEMENTS} -fs "${APPLE_CERTIFICATE}" "${RYZOM_OUTPUT_DIR}" COMMENT "Signing Ryzom bundle...")
     ENDIF()
   ENDIF()