diff --git a/CMakeLists.txt b/CMakeLists.txt
index ba03c266..19fd6c5e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -117,10 +117,6 @@ if(NOT OPENJPEG_INSTALL_SHARE_DIR)
   set(OPENJPEG_INSTALL_SHARE_DIR "share")
 endif()
 
-if(NOT OPENJPEG_INSTALL_DATA_DIR)
-  set(OPENJPEG_INSTALL_DATA_DIR "${OPENJPEG_INSTALL_SHARE_DIR}/${OPENJPEG_INSTALL_SUBDIR}")
-endif()
-
 if(NOT OPENJPEG_INSTALL_INCLUDE_DIR)
   set(OPENJPEG_INSTALL_INCLUDE_DIR "include/${OPENJPEG_INSTALL_SUBDIR}")
 endif()