diff --git a/SuperBuild/CMake/External_otb.cmake b/SuperBuild/CMake/External_otb.cmake
index b125b8d76d9ab1bfcd1fe7b8ea83467cd42f7ded..7960b53e44e89d7537ec3ee2e7991f7202e6e356 100644
--- a/SuperBuild/CMake/External_otb.cmake
+++ b/SuperBuild/CMake/External_otb.cmake
@@ -35,15 +35,15 @@ if(OTB_USE_CURL)
 endif()
 
 if(OTB_USE_LIBKML)
-    ADDTO_DEPENDENCIES_IF_NOT_SYSTEM(OTB LIBKML)
-    ADD_SUPERBUILD_CMAKE_VAR(OTB LIBKML_INCLUDE_DIR)
-    ADD_SUPERBUILD_CMAKE_VAR(OTB LIBKML_BASE_LIBRARY)
-    ADD_SUPERBUILD_CMAKE_VAR(OTB LIBKML_CONVENIENCE_LIBRARY)
-    ADD_SUPERBUILD_CMAKE_VAR(OTB LIBKML_DOM_LIBRARY)
-    ADD_SUPERBUILD_CMAKE_VAR(OTB LIBKML_ENGINE_LIBRARY)
-    ADD_SUPERBUILD_CMAKE_VAR(OTB LIBKML_REGIONATOR_LIBRARY)
-    ADD_SUPERBUILD_CMAKE_VAR(OTB LIBKML_XSD_LIBRARY)
-    ADD_SUPERBUILD_CMAKE_VAR(OTB LIBKML_MINIZIP_LIBRARY)
+  ADDTO_DEPENDENCIES_IF_NOT_SYSTEM(OTB LIBKML)
+  ADD_SUPERBUILD_CMAKE_VAR(OTB LIBKML_INCLUDE_DIR)
+  ADD_SUPERBUILD_CMAKE_VAR(OTB LIBKML_BASE_LIBRARY)
+  ADD_SUPERBUILD_CMAKE_VAR(OTB LIBKML_CONVENIENCE_LIBRARY)
+  ADD_SUPERBUILD_CMAKE_VAR(OTB LIBKML_DOM_LIBRARY)
+  ADD_SUPERBUILD_CMAKE_VAR(OTB LIBKML_ENGINE_LIBRARY)
+  ADD_SUPERBUILD_CMAKE_VAR(OTB LIBKML_REGIONATOR_LIBRARY)
+  ADD_SUPERBUILD_CMAKE_VAR(OTB LIBKML_XSD_LIBRARY)
+  ADD_SUPERBUILD_CMAKE_VAR(OTB LIBKML_MINIZIP_LIBRARY)
 endif()
 
 if(OTB_USE_OPENCV)