diff --git a/Conversion test cases.txt b/Conversion test cases.txt
index 3da0e79..5e3cc3b 100644
--- a/Conversion test cases.txt	
+++ b/Conversion test cases.txt	
@@ -770,6 +770,9 @@ a_tsal852ja$)@#%(!Ta)0daM)%!@sa
 // test special handing for @#
 @# #@ @a#
 
+// Test of [] nesting.  Anything ending in t will fail if it isn't "protected" by [].
+ra[rat[bat[hat]sat]mat]fa
+
 // !!! We *don't* test X/~X here because they are known not to work.
 
 // English inserts