diff --git a/source/blender/makesdna/DNA_curve_defaults.h b/source/blender/makesdna/DNA_curve_defaults.h
index ffead05c314..addd68c7e1b 100644
--- a/source/blender/makesdna/DNA_curve_defaults.h
+++ b/source/blender/makesdna/DNA_curve_defaults.h
@@ -38,6 +38,8 @@
     .bevresol = 4, \
     .bevel_mode = CU_BEV_MODE_ROUND, \
     .taper_radius_mode = CU_TAPER_RADIUS_OVERRIDE, \
+    /* Use a default to prevent invalid values. */ \
+    .ob_type = OB_CURVES_LEGACY, \
   }
 
 /** \} */