diff --git a/source/blender/include/blendef.h b/source/blender/include/blendef.h
index 1dbc0a78701..a8146d3c635 100644
--- a/source/blender/include/blendef.h
+++ b/source/blender/include/blendef.h
@@ -301,6 +301,7 @@
 #define B_TEXTDELETE	504
 #define B_TEXTFONT		505
 #define B_TEXTSTORE		506
+#define B_TEXTLINENUM	507
 
 /* FILE: 550 */
 #define B_SORTFILELIST	551