diff --git a/lib/lists.js b/lib/lists.js
index 9411076..a27ff12 100644
--- a/lib/lists.js
+++ b/lib/lists.js
@@ -15,6 +15,7 @@
 	}
 	
 	const settings = require("./settings");
+	const logging = require("./logging");
 	
 	
 	function getDomainRegExpList(domainList){
@@ -33,7 +34,16 @@
 					regExp = new RegExp("(?:^|\\.)" + entry.replace(/([\\+*?[^\]$(){}=!|.])/g, "\\$1") + "\\.?$", "i");
 				}
 				else {
-					regExp = new RegExp(entry, "i");
+					try {
+						regExp = new RegExp(entry, "i");
+					}
+					catch (error){
+						logging.error("Error in regular expression", entry, error);
+						regExp = new RegExp(
+							"(?:^|\\.)" + entry.replace(/([\\+*?[^\]$(){}=!|.])/g, "\\$1") + "\\.?$",
+							"i"
+						);
+					}
 				}
 				return {
 					value: entry,
diff --git a/releaseNotes.txt b/releaseNotes.txt
index 149f531..42ad943 100644
--- a/releaseNotes.txt
+++ b/releaseNotes.txt
@@ -6,7 +6,7 @@ Version 1.9:
 		- 
 	
 	fixes:
-		- 
+		- errors in URL regular expressions broke CB
 	
 	known issues:
 		- if a data URL is blocked the page action button does not appear