diff --git a/wikitextparser/_wikitext.py b/wikitextparser/_wikitext.py
index 9eb8e50..a91a0ec 100644
--- a/wikitextparser/_wikitext.py
+++ b/wikitextparser/_wikitext.py
@@ -113,11 +113,7 @@
     DOTALL | MULTILINE | VERBOSE,
 ).finditer
 
-substitute_apostrophes = rc(  # bold-italic, bold, or italic tokens
-    rb"('\0*+){2,}+(?=[^']|$)",
-    MULTILINE | VERBOSE,
-).sub
-find_lines = rc(rb'(.*?)$').finditer
+substitute_apostrophes = rc(rb"('\0*+){2,}+(?=[^']|$)", MULTILINE).sub
 
 BOLD_FINDITER = rc(
     rb"""