diff --git a/examples/module/ftk_app/ftk_calculator/SConstruct b/examples/module/ftk_app/ftk_calculator/SConstruct
index e7177f5e39..29a251075b 100644
--- a/examples/module/ftk_app/ftk_calculator/SConstruct
+++ b/examples/module/ftk_app/ftk_calculator/SConstruct
@@ -2,7 +2,7 @@ import os
 import sys
 
 EXEC_PATH = '/home/shaolin/CodeSourcery/Sourcery_G++_Lite/bin'
-RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
+RTT_ROOT = os.path.normpath(os.getcwd() + '/../../../..')
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 PREFIX = 'arm-none-eabi-'
 env = Environment(tools = ['mingw'],
diff --git a/examples/module/ftk_app/ftk_demo/SConstruct b/examples/module/ftk_app/ftk_demo/SConstruct
index 00caaf54ed..b1b4ef8e79 100644
--- a/examples/module/ftk_app/ftk_demo/SConstruct
+++ b/examples/module/ftk_app/ftk_demo/SConstruct
@@ -2,7 +2,7 @@ import os
 import sys
 
 EXEC_PATH = '/home/shaolin/CodeSourcery/Sourcery_G++_Lite/bin'
-RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
+RTT_ROOT = os.path.normpath(os.getcwd() + '/../../../..')
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 PREFIX = 'arm-none-eabi-'
 env = Environment(tools = ['mingw'],
diff --git a/examples/module/rtgui_app/tetris/SConstruct b/examples/module/rtgui_app/tetris/SConstruct
index 28b4ebd0a3..a1a9923d80 100644
--- a/examples/module/rtgui_app/tetris/SConstruct
+++ b/examples/module/rtgui_app/tetris/SConstruct
@@ -2,7 +2,7 @@ import os
 import sys
 
 EXEC_PATH = '/home/shaolin/CodeSourcery/Sourcery_G++_Lite/bin'
-RTT_ROOT = os.path.normpath(os.getcwd() + '/../../..')
+RTT_ROOT = os.path.normpath(os.getcwd() + '/../../../..')
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
 PREFIX = 'arm-none-eabi-'
 env = Environment(tools = ['mingw'],