diff --git a/source/blender/modifiers/intern/MOD_volume_displace.cc b/source/blender/modifiers/intern/MOD_volume_displace.cc
index 6d1ec283f5f..11007234f54 100644
--- a/source/blender/modifiers/intern/MOD_volume_displace.cc
+++ b/source/blender/modifiers/intern/MOD_volume_displace.cc
@@ -119,12 +119,12 @@ static void panel_register(ARegionType *region_type)
 
 #ifdef WITH_OPENVDB
 
-static openvdb::Mat4s matrix_to_openvdb(const float m[4][4])
+static openvdb::Mat4s matrix_to_openvdb(const blender::float4x4 &m)
 {
   /* OpenVDB matrices are transposed Blender matrices, i.e. the translation is in the last row
    * instead of in the last column. However, the layout in memory is the same, because OpenVDB
    * matrices are row major (compared to Blender's column major matrices). */
-  openvdb::Mat4s new_matrix{reinterpret_cast<const float *>(m)};
+  openvdb::Mat4s new_matrix{m.base_ptr()};
   return new_matrix;
 }
 
@@ -250,18 +250,16 @@ struct DisplaceGridOp {
         return index_to_object;
       }
       case MOD_VOLUME_DISPLACE_MAP_GLOBAL: {
-        const openvdb::Mat4s object_to_world = matrix_to_openvdb(
-            ctx.object->object_to_world().ptr());
+        const openvdb::Mat4s object_to_world = matrix_to_openvdb(ctx.object->object_to_world());
         return index_to_object * object_to_world;
       }
       case MOD_VOLUME_DISPLACE_MAP_OBJECT: {
         if (vdmd.texture_map_object == nullptr) {
           return index_to_object;
         }
-        const openvdb::Mat4s object_to_world = matrix_to_openvdb(
-            ctx.object->object_to_world().ptr());
+        const openvdb::Mat4s object_to_world = matrix_to_openvdb(ctx.object->object_to_world());
         const openvdb::Mat4s world_to_texture = matrix_to_openvdb(
-            vdmd.texture_map_object->world_to_object().ptr());
+            vdmd.texture_map_object->world_to_object());
         return index_to_object * object_to_world * world_to_texture;
       }
     }