1 files changed, 6 insertions, 0 deletions
diff --git a/source/blender/makesdna/DNA_modifier_types.h b/source/blender/makesdna/DNA_modifier_types.h
index b01b3f42e6a..fc50261eb03 100644
--- a/source/blender/makesdna/DNA_modifier_types.h
+++ b/source/blender/makesdna/DNA_modifier_types.h
@@ -22,6 +22,7 @@
 
 #include "DNA_defs.h"
 #include "DNA_listBase.h"
+#include "DNA_session_uuid_types.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -124,6 +125,11 @@ typedef struct ModifierData {
 
   /* Pointer to a ModifierData in the original domain. */
   struct ModifierData *orig_modifier_data;
+
+  /* Runtime field which contains unique identifier of the modifier. */
+  SessionUUID session_uuid;
+
+  /* Runtime field which contains runtime data which is specific to a modifier type. */
   void *runtime;
 } ModifierData;