diff --git a/source/blender/makesrna/intern/rna_main_api.c b/source/blender/makesrna/intern/rna_main_api.c
index 5d0d7bf20df..e0088416883 100644
--- a/source/blender/makesrna/intern/rna_main_api.c
+++ b/source/blender/makesrna/intern/rna_main_api.c
@@ -104,6 +104,10 @@
 
 #include "BLF_translation.h"
 
+#ifdef WITH_PYTHON
+#  include "BPY_extern.h"
+#endif
+
 static Camera *rna_Main_cameras_new(Main *bmain, const char *name)
 {
 	ID *id = BKE_camera_add(bmain, name);
@@ -138,7 +142,17 @@ static void rna_Main_scenes_remove(Main *bmain, bContext *C, ReportList *reports
 	{
 		bScreen *sc = CTX_wm_screen(C);
 		if (sc->scene == scene) {
+
+#ifdef WITH_PYTHON
+			BPy_BEGIN_ALLOW_THREADS;
+#endif
+
 			ED_screen_set_scene(C, sc, scene_new);
+
+#ifdef WITH_PYTHON
+			BPy_END_ALLOW_THREADS;
+#endif
+
 		}
 
 		BKE_scene_unlink(bmain, scene, scene_new);
diff --git a/source/blender/makesrna/intern/rna_screen.c b/source/blender/makesrna/intern/rna_screen.c
index 5902f3095fc..adea1f641a9 100644
--- a/source/blender/makesrna/intern/rna_screen.c
+++ b/source/blender/makesrna/intern/rna_screen.c
@@ -81,13 +81,13 @@ static void rna_Screen_scene_update(bContext *C, PointerRNA *ptr)
 	/* exception: must use context so notifier gets to the right window  */
 	if (sc->newscene) {
 #ifdef WITH_PYTHON
-	BPy_BEGIN_ALLOW_THREADS;
+		BPy_BEGIN_ALLOW_THREADS;
 #endif
 
 		ED_screen_set_scene(C, sc, sc->newscene);
 
 #ifdef WITH_PYTHON
-	BPy_END_ALLOW_THREADS;
+		BPy_END_ALLOW_THREADS;
 #endif
 
 		WM_event_add_notifier(C, NC_SCENE | ND_SCENEBROWSE, sc->newscene);