diff --git a/CMakeLists.txt b/CMakeLists.txt
index 052c586a..562d4118 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -280,7 +280,6 @@ IF(CMAKE_COMPILER_IS_GNUCXX OR MINGW)
                         SET (CUSTOM_DATA_INSTALL_PATH "\"${CMAKE_INSTALL_PREFIX}/${MEGAGLEST_DATA_INSTALL_PATH}\"" CACHE STRING "The FULL installation path for data files (this is build automatically by combining CMAKE_INSTALL_PREFIX and MEGAGLEST_DATA_INSTALL_PATH)")
 		ENDIF()
 		SET(CUSTOM_DATA_INSTALL_PATH_VALUE "-DCUSTOM_DATA_INSTALL_PATH=${CUSTOM_DATA_INSTALL_PATH}")
-		ADD_DEFINITIONS("-DCUSTOM_DATA_INSTALL_PATH=${CUSTOM_DATA_INSTALL_PATH}")
 
                 SET(PKG_DATADIR ${CUSTOM_DATA_INSTALL_PATH_VALUE})
                 SET(PKG_BINDIR ${MEGAGLEST_BIN_INSTALL_PATH})