diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt
index b903b38..5a72e21 100644
--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -1,4 +1,4 @@
-*builtin.txt*	For Vim version 9.1.  Last change: 2025 Mar 26
+*builtin.txt*	For Vim version 9.1.  Last change: 2025 Mar 30
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -11923,7 +11923,7 @@
 		Return type: |Float|
 
 
-tuple2list({list})					*tuple2list()*
+tuple2list({tuple})					*tuple2list()*
 		Create a List from a shallow copy of the tuple items.
 		Examples: >
 			tuple2list((1, 2, 3))		returns [1, 2, 3]
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index bcd64e3..7ea768a 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -1,4 +1,4 @@
-*eval.txt*	For Vim version 9.1.  Last change: 2025 Mar 23
+*eval.txt*	For Vim version 9.1.  Last change: 2025 Mar 30
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -541,7 +541,8 @@
 A Tuple is an ordered sequence of items.  An item can be of any type.  Items
 can be accessed by their index number.  A Tuple is immutable.
 
-A Tuple uses less memory compared to a List and provides O(1) lookup time.
+A Tuple is similar to a List but uses less memory and provides O(1) lookup
+time for an item.
 
 Tuple creation ~
 						*E1526* *E1527*
@@ -579,6 +580,15 @@
 	:echo get(mytuple, idx, "NONE")
 
 
+Tuple modification ~
+							*tuple-modification*
+A tuple is immutable and items cannot be added or removed from a tuple.  But
+List and Dict items within a tuple can be modified: >
+	:let tuple = (1, [2, 3], {'a': 4})
+	:let tuple[1][0] = 10
+	:let tuple[2]['a'] = 20
+
+
 Tuple concatenation ~
 							*tuple-concatenation*
 Two tuples can be concatenated with the "+" operator: >
diff --git a/runtime/doc/tags b/runtime/doc/tags
index 7d54ee9..fa47092 100644
--- a/runtime/doc/tags
+++ b/runtime/doc/tags
@@ -10937,6 +10937,7 @@
 tuple-functions	usr_41.txt	/*tuple-functions*
 tuple-identity	eval.txt	/*tuple-identity*
 tuple-index	eval.txt	/*tuple-index*
+tuple-modification	eval.txt	/*tuple-modification*
 tuple-type	vim9.txt	/*tuple-type*
 tuple2list()	builtin.txt	/*tuple2list()*
 tutor	usr_01.txt	/*tutor*
diff --git a/runtime/doc/usr_41.txt b/runtime/doc/usr_41.txt
index 4c5e5ef..8279e3e 100644
--- a/runtime/doc/usr_41.txt
+++ b/runtime/doc/usr_41.txt
@@ -1,4 +1,4 @@
-*usr_41.txt*	For Vim version 9.1.  Last change: 2025 Mar 23
+*usr_41.txt*	For Vim version 9.1.  Last change: 2025 Mar 30
 
 		     VIM USER MANUAL - by Bram Moolenaar
 
@@ -862,7 +862,7 @@
 	reverse()		reverse the order of items in a Tuple
 	slice()			take a slice of a Tuple
 	string()		string representation of a Tuple
-	tuple2list()		convert a Tuple of items into a list
+	tuple2list()		convert a Tuple into a List
 
 Dictionary manipulation:				*dict-functions*
 	get()			get an entry without an error for a wrong key