diff --git a/SuperBuild/CMake/External_openjpeg.cmake b/SuperBuild/CMake/External_openjpeg.cmake
index 99c21a6a7112f63dd99bb315373c74795655e48a..7c0a31b376963edc1494fd448e476b1520e7931a 100644
--- a/SuperBuild/CMake/External_openjpeg.cmake
+++ b/SuperBuild/CMake/External_openjpeg.cmake
@@ -29,9 +29,6 @@ ADD_SUPERBUILD_CMAKE_VAR(OPENJPEG TIFF_INCLUDE_DIR)
 ADD_SUPERBUILD_CMAKE_VAR(OPENJPEG TIFF_LIBRARY)
 ADD_SUPERBUILD_CMAKE_VAR(OPENJPEG ZLIB_INCLUDE_DIR)
 ADD_SUPERBUILD_CMAKE_VAR(OPENJPEG ZLIB_LIBRARY)
-ADD_SUPERBUILD_CMAKE_VAR(OPENJPEG PNG_INCLUDE_DIR)
-ADD_SUPERBUILD_CMAKE_VAR(OPENJPEG PNG_PNG_INCLUDE_DIR)
-ADD_SUPERBUILD_CMAKE_VAR(OPENJPEG PNG_LIBRARY)
 
 #GIT_REPOSITORY "https://github.com/uclouvain/openjpeg.git"
 #GIT_TAG 081de4b15f54cb4482035b7bf5e3fb443e4bc84b
diff --git a/SuperBuild/CMake/External_png.cmake b/SuperBuild/CMake/External_png.cmake
index a875fb729d882be22d83daa48bf7bdfe999e8141..e501907d06ecd2b7f9470f5c5d73c40c3c47210f 100644
--- a/SuperBuild/CMake/External_png.cmake
+++ b/SuperBuild/CMake/External_png.cmake
@@ -53,6 +53,5 @@ ExternalProject_Add(PNG
   LOG_BUILD 1
   LOG_INSTALL 1
   )
-set(_SB_PNG_PNG_INCLUDE_DIR ${SB_INSTALL_PREFIX}/include)
 
 SUPERBUILD_UPDATE_CMAKE_VARIABLES(PNG TRUE)