diff --git a/CMakeLists.txt b/CMakeLists.txt
index e5840ff78959378d8b67298aa5180563caa33572..78e9f1c3f899100142be1ef46177b4b04e7ab4f2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -173,8 +173,7 @@ IF(NOT OTB_INSTALL_INCLUDE_DIR)
 ENDIF(NOT OTB_INSTALL_INCLUDE_DIR)
 
 IF(NOT OTB_INSTALL_PACKAGE_DIR)
-  SET(OTB_INSTALL_PACKAGE_DIR ${OTB_INSTALL_LIB_DIR}
-    CACHE INTERNAL "")
+  SET(OTB_INSTALL_PACKAGE_DIR ${OTB_INSTALL_LIB_DIR})
 ENDIF(NOT OTB_INSTALL_PACKAGE_DIR)
 
 IF(NOT OTB_INSTALL_NO_DEVELOPMENT)