diff --git a/source/blender/blenkernel/intern/blendfile.cc b/source/blender/blenkernel/intern/blendfile.cc
index 2ac2ae43684..68f37df9ca9 100644
--- a/source/blender/blenkernel/intern/blendfile.cc
+++ b/source/blender/blenkernel/intern/blendfile.cc
@@ -640,7 +640,7 @@ UserDef *BKE_blendfile_userdef_read_from_memory(const void *filebuf,
 
 UserDef *BKE_blendfile_userdef_from_defaults(void)
 {
-  UserDef *userdef = MEM_cnew<UserDef>(__func__);
+  UserDef *userdef = static_cast<UserDef *>(MEM_callocN(sizeof(UserDef), __func__));
   *userdef = blender::dna::shallow_copy(U_default);
 
   /* Add-ons. */