diff --git a/docs/src/commentary/stg.rst b/docs/src/commentary/tim.rst
similarity index 98%
rename from docs/src/commentary/stg.rst
rename to docs/src/commentary/tim.rst
index 027bae5..4dd05cd 100644
--- a/docs/src/commentary/stg.rst
+++ b/docs/src/commentary/tim.rst
@@ -1,5 +1,5 @@
-The *Spineless Tagless G-Machine*
-=================================
+The *Template Instantiation Machine*
+====================================
 
 WIP. This will hopefully be expanded into a thorough walkthrough of the state
 machine.