diff --git a/gen-wcwidth.py b/gen-wcwidth.py
index ad95f15a2..7f5bb66b2 100755
--- a/gen-wcwidth.py
+++ b/gen-wcwidth.py
@@ -448,7 +448,7 @@ def gen_ucd() -> None:
     with open('tools/cmd/hints/url_regex.go', 'w') as f:
         f.write('// generated by gen-wcwidth.py, do not edit\n\n')
         f.write('package hints\n\n')
-        f.write(f'const URL_DELIMITERS = `{chars}`')
+        f.write(f'const URL_DELIMITERS = `{chars}`\n')
 
 
 def gen_names() -> None:
diff --git a/tools/cmd/hints/url_regex.go b/tools/cmd/hints/url_regex.go
index d637e3234..aa89c13f1 100644
--- a/tools/cmd/hints/url_regex.go
+++ b/tools/cmd/hints/url_regex.go
@@ -2,4 +2,4 @@
 
 package hints
 
-const URL_DELIMITERS = `\x00-\x09\x0b-\x0c\x0e-\x20\x7f-\xa0\xad\x{600}-\x{605}\x{61c}\x{6dd}\x{70f}\x{890}-\x{891}\x{8e2}\x{1680}\x{180e}\x{2000}-\x{200f}\x{2028}-\x{202f}\x{205f}-\x{2064}\x{2066}-\x{206f}\x{3000}\x{d800}-\x{f8ff}\x{feff}\x{fff9}-\x{fffb}\x{110bd}\x{110cd}\x{13430}-\x{1343f}\x{1bca0}-\x{1bca3}\x{1d173}-\x{1d17a}\x{e0001}\x{e0020}-\x{e007f}\x{f0000}-\x{ffffd}\x{100000}-\x{10fffd}`
\ No newline at end of file
+const URL_DELIMITERS = `\x00-\x09\x0b-\x0c\x0e-\x20\x7f-\xa0\xad\x{600}-\x{605}\x{61c}\x{6dd}\x{70f}\x{890}-\x{891}\x{8e2}\x{1680}\x{180e}\x{2000}-\x{200f}\x{2028}-\x{202f}\x{205f}-\x{2064}\x{2066}-\x{206f}\x{3000}\x{d800}-\x{f8ff}\x{feff}\x{fff9}-\x{fffb}\x{110bd}\x{110cd}\x{13430}-\x{1343f}\x{1bca0}-\x{1bca3}\x{1d173}-\x{1d17a}\x{e0001}\x{e0020}-\x{e007f}\x{f0000}-\x{ffffd}\x{100000}-\x{10fffd}`