diff --git a/docs/system/targets.rst b/docs/system/targets.rst
index 560783644d..564cea9a9b 100644
--- a/docs/system/targets.rst
+++ b/docs/system/targets.rst
@@ -7,16 +7,21 @@ various targets are mentioned in the following sections.
 
 Contents:
 
+..
+   This table of contents should be kept sorted alphabetically
+   by the title text of each file, which isn't the same ordering
+   as an alphabetical sort by filename.
+
 .. toctree::
 
-   target-i386
+   target-arm
+   target-avr
+   target-m68k
+   target-mips
    target-ppc
+   target-rx
+   target-s390x
    target-sparc
    target-sparc64
-   target-mips
-   target-arm
-   target-m68k
+   target-i386
    target-xtensa
-   target-s390x
-   target-rx
-   target-avr