diff --git a/src/doc/new-doc/developer-guide/system-properites.txi b/src/doc/new-doc/developer-guide/system-properites.txi
new file mode 100644
index 000000000..f772ab86e
--- /dev/null
+++ b/src/doc/new-doc/developer-guide/system-properites.txi
@@ -0,0 +1,8 @@
+
+
+@t{si:get-sysprop}, @t{si:put-sysprop}, @t{si:rem-sysprop}
+6b76d155eeaf55b138a1dc6fd8044b52a00e118e
+
+
+structure.d clos dependency introduced in:
+8800b254f55a477f39b3e51ddb458d42a56ad672