diff --git a/Syntaxes/Perl.plist b/Syntaxes/Perl.plist
index c863982..8db03f1 100644
--- a/Syntaxes/Perl.plist
+++ b/Syntaxes/Perl.plist
@@ -1068,7 +1068,7 @@
 			<key>comment</key>
 			<string>string.regexp.replace.extended</string>
 			<key>end</key>
-			<string>((([egimosradlupc]*x[egimosradlupc]*)))\b</string>
+			<string>((([egimosradlupc]*x[egimosradlupcx]*)))\b</string>
 			<key>endCaptures</key>
 			<dict>
 				<key>1</key>
@@ -1129,7 +1129,7 @@
 						</dict>
 					</dict>
 					<key>end</key>
-					<string>'(?=[egimosradlupc]*x[egimosradlupc]*)\b</string>
+					<string>'(?=[egimosradlupc]*x[egimosradlupcx]*)\b</string>
 					<key>name</key>
 					<string>string.regexp.replace.extended.simple_delimiter.perl</string>
 					<key>patterns</key>
@@ -1152,7 +1152,7 @@
 						</dict>
 					</dict>
 					<key>end</key>
-					<string>\1(?=[egimosradlupc]*x[egimosradlupc]*)\b</string>
+					<string>\1(?=[egimosradlupc]*x[egimosradlupcx]*)\b</string>
 					<key>name</key>
 					<string>string.regexp.replace.extended.simple_delimiter.perl</string>
 					<key>patterns</key>