diff --git a/SuperBuild/CMake/External_otb.cmake b/SuperBuild/CMake/External_otb.cmake
index 09dd4e4c67048dcf33637f32f0a73617fc58ff5a..ac411ddd780a3bc0be62c9b80ef63129513bb5d3 100644
--- a/SuperBuild/CMake/External_otb.cmake
+++ b/SuperBuild/CMake/External_otb.cmake
@@ -65,9 +65,6 @@ endif()
 
 if(OTB_USE_QT4)
   list(APPEND ${proj}_DEPENDENCIES QT4)
-  if(USE_SYSTEM_QT4 AND UNIX)
-    message(STATUS "  Qt4 is not built by SuperBuild. You need to install it via package manager.")
-  endif()
 endif()
 
 INCLUDE_SUPERBUILD_DEPENDENCIES(${${proj}_DEPENDENCIES})
diff --git a/SuperBuild/CMake/External_qt4.cmake b/SuperBuild/CMake/External_qt4.cmake
index 36359df0468be96b092d534ec78b16ec29ebb73b..65ae6d13b1903127aa9dfc6a3d846cbaf4c98a84 100644
--- a/SuperBuild/CMake/External_qt4.cmake
+++ b/SuperBuild/CMake/External_qt4.cmake
@@ -12,6 +12,9 @@ if(USE_SYSTEM_QT4)
 else()
   SETUP_SUPERBUILD(PROJECT ${proj})
   message(STATUS "  Using Qt4 SuperBuild version")
+  if(UNIX)
+    message(STATUS "  SuperBuild may fail to compile Qt4. If so, you should install it via package manager.")
+  endif()
   
   if(NOT DEFINED git_protocol)
     set(git_protocol "git")