diff --git a/autoload/denote/meta.vim b/autoload/denote/meta.vim
index 3f62e3d..cf38a8d 100644
--- a/autoload/denote/meta.vim
+++ b/autoload/denote/meta.vim
@@ -35,9 +35,6 @@ endfunction
 
 " Identifier creation
 function denote#meta#identifier_generate()
-	if g:denote_identifier_fun
-				return execute 'call ' .. g:denote_identifier_fun .. '()'
-	endif
 	return exists('*strftime')
 				\ ? strftime('%Y%m%dT%H%M%S')
 				\ : rand()
diff --git a/autoload/denote/notes.vim b/autoload/denote/notes.vim
index cf83f7f..5cfa1a5 100644
--- a/autoload/denote/notes.vim
+++ b/autoload/denote/notes.vim
@@ -26,7 +26,7 @@ endfunction
 " This creates a new denote entry with the given title and of the given
 " filetype. The title may be empty.
 function denote#notes#new(title, ft=g:denote_new_ft)
-	let l:identifier=denote#meta#identifier_generate()
+	let l:identifier=g:Denote_identifier_fun()
 	let l:fn=l:identifier .. '--' .. a:title
 				\ ->tolower()
 				\ ->substitute('[^[:fname:]]\|/', '-', 'g')
diff --git a/doc/denote.txt b/doc/denote.txt
index 832a21c..dd8ecdf 100644
--- a/doc/denote.txt
+++ b/doc/denote.txt
@@ -125,15 +125,22 @@ g:denote_fm_md_type		string
 	let g:denote_fm_md_type = 'yaml'
 <
 
-						*g:denote_identifier_fun*
-g:denote_identifier_fun		Funcref
+						*g:Denote_identifier_fun*
+g:Denote_identifier_fun		Funcref
 	Denote allows the use of custom identifiers. This variable, if set,
 	points to a function that generates identifiers for newly created
 	notes. The function is supposed to return a unique string. By default,
-	the identifiers are computed with
+	the variable set as
 >
-	strftime('%Y%m%dT%H%M%S')
+	let g:Denote_identifier_fun = function('denote#meta#identifier_generate')
 <
-or with |rand()| if the function |strftime()| is unavailable.
+which calls |strftime('%Y%m%dT%H%M%S')| if |strftime()| is available, and
+|rand()| otherwise. Another reasonable setting would be to use some uuid
+generator and to specify, e.g.,
+>
+	let g:Denote_identifier_fun = { -> system('uuidgen')
+				\ ->substitute('[^[:xdigit:]]', '', 'g') }
+<
+
 
 vim:tw=78:sw=4:ts=8:noet:ft=help:norl:
diff --git a/plugin/denote.vim b/plugin/denote.vim
index 62e392e..c36b0a0 100644
--- a/plugin/denote.vim
+++ b/plugin/denote.vim
@@ -2,7 +2,7 @@
 
 " List of denote directories
 if !exists('g:denote_directories')
-	let g:denote_directories=[]
+	let g:denote_directories = []
 endif
 call map(g:denote_directories, {_, d -> fnamemodify(d, ':p')})
 " If only one directory has been specified, use that as denote directory
@@ -12,28 +12,28 @@ call map(g:denote_directories, {_, d -> fnamemodify(d, ':p')})
 
 " Restrict basic operations to these files
 if !exists('g:denote_note_file_extensions')
-	let g:denote_note_file_extensions=['md', 'org', 'txt']
+	let g:denote_note_file_extensions = ['md', 'org', 'txt']
 endif
 
 " Number of columns used for the title in the location window
 if !exists('g:denote_loc_title_columns')
-	let g:denote_loc_title_columns=40
+	let g:denote_loc_title_columns = 40
 endif
 
 " Default filetype for newly created denote entries
 if !exists('g:denote_new_ft')
-	let g:denote_new_ft='md'
+	let g:denote_new_ft = 'md'
 endif
 
 " Default front-matter type for markdown notes, may be one of 'yaml' or 'toml'
 if !exists('g:denote_fm_md_type')
-	let g:denote_fm_md_type='yaml'
+	let g:denote_fm_md_type = 'yaml'
 endif
 
 " By using the following global variable, the user may specify a custom
 " function for creating identifiers.
-if !exists('g:denote_identifier_fun')
-	let g:denote_identifier_fun=''
+if !exists('g:Denote_identifier_fun')
+	let g:Denote_identifier_fun = function('denote#meta#identifier_generate')
 endif
 
 " Transform full path into canonical form WITH trailing '/'