diff --git a/SuperBuild/Packaging/PackageHelper.cmake b/SuperBuild/Packaging/PackageHelper.cmake
index 656eb118a82c51a2280887333d4f0c56e75a5cdb..7b643955f7092eacda5c6186a2f127d7c489d650 100644
--- a/SuperBuild/Packaging/PackageHelper.cmake
+++ b/SuperBuild/Packaging/PackageHelper.cmake
@@ -1,7 +1,7 @@
 macro(macro_super_package)
   cmake_parse_arguments(PKG  "" "STAGE_DIR" "SEARCHDIRS" ${ARGN} )
 
-  if("${PKG_STAGE_DIR}" STREQUAL "")
+  if(${PKG_STAGE_DIR} STREQUAL "")
     message(FATAL_ERROR "PKG_STAGE_DIR is emtpy. Just can't continue.")
   endif()