diff --git a/trunk/paradiseo-peo/tutorial/Lesson3/CMakeLists.txt b/trunk/paradiseo-peo/tutorial/Lesson3/CMakeLists.txt
index b3dda6302..2a9da8df5 100644
--- a/trunk/paradiseo-peo/tutorial/Lesson3/CMakeLists.txt
+++ b/trunk/paradiseo-peo/tutorial/Lesson3/CMakeLists.txt
@@ -4,7 +4,7 @@
 ######################################################################################
 SET (CMAKE_CXX_COMPILER mpicxx)
 
-ADDADD_CUSTOM_TARGET(install DEPENDS ${ParadisEO-PEO_SOURCE_DIR}/tutorial/Lesson3/lesson.param ${ParadisEO-PEO_SOURCE_DIR}/tutorial/Lesson3/schema.xml)
+ADD_CUSTOM_TARGET(install DEPENDS ${ParadisEO-PEO_SOURCE_DIR}/tutorial/Lesson3/lesson.param ${ParadisEO-PEO_SOURCE_DIR}/tutorial/Lesson3/schema.xml)
 
 ADD_CUSTOM_COMMAND(
     TARGET install