diff --git a/doc/todo/git-annex_7.20181105_not_buildable_against_Debian_stretch.mdwn b/doc/todo/git-annex_7.20181105_not_buildable_against_Debian_stretch.mdwn
new file mode 100644
index 0000000000..66aed0d48e
--- /dev/null
+++ b/doc/todo/git-annex_7.20181105_not_buildable_against_Debian_stretch.mdwn
@@ -0,0 +1,10 @@
+    [249 of 596] Compiling Database.Init    ( Database/Init.hs, dist/build/git-annex/git-annex-tmp/Database/Init.o )
+    
+    Database/Init.hs:52:27: error:
+        Not in scope: type constructor or class ‘SqliteConnectionInfo’
+    Makefile:32: recipe for target 'git-annex' failed
+    make[1]: *** [git-annex] Error 1
+
+Backporting recent persistent-sqlite to stretch is highly unlikely to succeed, given how tangled Haskell library dependencies tend to be.  So, unless there is an easy fix for this, git-annex will have to be removed from stretch-backports.  That would be a shame, but I guess buster isn't so far away now!
+
+--spwhitton