1 files changed, 8 insertions, 4 deletions
diff --git a/source/blender/io/alembic/intern/abc_reader_object.h b/source/blender/io/alembic/intern/abc_reader_object.h
index dcc2697e0b5..0bde60b06b5 100644
--- a/source/blender/io/alembic/intern/abc_reader_object.h
+++ b/source/blender/io/alembic/intern/abc_reader_object.h
@@ -13,14 +13,12 @@
  * along with this program; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
+#pragma once
 
 /** \file
  * \ingroup balembic
  */
 
-#ifndef __ABC_READER_OBJECT_H__
-#define __ABC_READER_OBJECT_H__
-
 #include <Alembic/Abc/All.h>
 #include <Alembic/AbcGeom/All.h>
 
@@ -33,6 +31,10 @@ struct Object;
 
 using Alembic::AbcCoreAbstract::chrono_t;
 
+namespace blender {
+namespace io {
+namespace alembic {
+
 struct ImportSettings {
   bool do_convert_mat;
   float conversion_mat[4][4];
@@ -166,4 +168,6 @@ class AbcObjectReader {
 
 Imath::M44d get_matrix(const Alembic::AbcGeom::IXformSchema &schema, const float time);
 
-#endif /* __ABC_READER_OBJECT_H__ */
+}  // namespace alembic
+}  // namespace io
+}  // namespace blender