diff --git a/source/blender/blenloader/intern/versioning_250.c b/source/blender/blenloader/intern/versioning_250.c
index c4a3690aea9..a4bd14d1495 100644
--- a/source/blender/blenloader/intern/versioning_250.c
+++ b/source/blender/blenloader/intern/versioning_250.c
@@ -72,6 +72,8 @@
 
 #include "readfile.h"
 
+#include "versioning_common.h"
+
 #include <errno.h>
 
 /* Make preferences read-only, use versioning_userdef.c. */
@@ -100,7 +102,7 @@ static void area_add_header_region(ScrArea *area, ListBase *lb)
   region->v2d.flag = (V2D_PIXELOFS_X | V2D_PIXELOFS_Y);
 }
 
-static void sequencer_init_preview_region(ARegion *region)
+void sequencer_init_preview_region(ARegion *region)
 {
   /* XXX a bit ugly still, copied from space_sequencer */
   /* NOTE: if you change values here, also change them in space_sequencer.c, sequencer_new */
diff --git a/source/blender/blenloader/intern/versioning_300.cc b/source/blender/blenloader/intern/versioning_300.cc
index ad7459e3d67..9ac33d9e618 100644
--- a/source/blender/blenloader/intern/versioning_300.cc
+++ b/source/blender/blenloader/intern/versioning_300.cc
@@ -2277,10 +2277,20 @@ static void version_ensure_missing_regions(ScrArea *area, SpaceLink *sl)
       break;
     }
     case SPACE_SEQ: {
+      ARegion *region;
+
       do_versions_ensure_region(regionbase,
                                 RGN_TYPE_CHANNELS,
                                 "versioning: channels region for sequencer",
                                 RGN_TYPE_TOOLS);
+
+      region = do_versions_ensure_region(regionbase,
+                                         RGN_TYPE_PREVIEW,
+                                         "versioning: preview region for sequencer",
+                                         RGN_TYPE_CHANNELS);
+      sequencer_init_preview_region(region);
+      region->flag &= ~RGN_FLAG_HIDDEN;
+
       break;
     }
   }
diff --git a/source/blender/blenloader/intern/versioning_common.h b/source/blender/blenloader/intern/versioning_common.h
index 8d17e9db39f..8c142707fdd 100644
--- a/source/blender/blenloader/intern/versioning_common.h
+++ b/source/blender/blenloader/intern/versioning_common.h
@@ -108,6 +108,8 @@ struct bNodeSocket *version_node_add_socket_if_not_exist(struct bNodeTree *ntree
 void version_socket_update_is_used(bNodeTree *ntree);
 ARegion *do_versions_add_region(int regiontype, const char *name);
 
+void sequencer_init_preview_region(ARegion *region);
+
 #ifdef __cplusplus
 }
 #endif