diff --git a/net/haproxy/src/opnsense/mvc/app/models/OPNsense/HAProxy/HAProxy.xml b/net/haproxy/src/opnsense/mvc/app/models/OPNsense/HAProxy/HAProxy.xml
index 982e9c0ae..798cc4467 100644
--- a/net/haproxy/src/opnsense/mvc/app/models/OPNsense/HAProxy/HAProxy.xml
+++ b/net/haproxy/src/opnsense/mvc/app/models/OPNsense/HAProxy/HAProxy.xml
@@ -863,7 +863,7 @@
         <healthchecks>
             <healthcheck type="ArrayField">
                 <name type="TextField">
-                    <mask>/^([0-9a-zA-Z._]){1,255}$/u</mask>
+                    <mask>/^[^\t^,^;^\.^\[^\]^\{^\}]{1,255}$/u</mask>
                     <ValidationMessage>Should be a string between 1 and 255 characters.</ValidationMessage>
                     <Required>Y</Required>
                 </name>
@@ -1025,7 +1025,7 @@
                     <Required>N</Required>
                 </id>
                 <name type="TextField">
-                    <mask>/^([0-9a-zA-Z._]){1,255}$/u</mask>
+                    <mask>/^[^\t^,^;^\.^\[^\]^\{^\}]{1,255}$/u</mask>
                     <ValidationMessage>Should be a string between 1 and 255 characters.</ValidationMessage>
                     <Required>Y</Required>
                 </name>
@@ -1427,7 +1427,7 @@
         <actions>
             <action type="ArrayField">
                 <name type="TextField">
-                    <mask>/^([0-9a-zA-Z._]){1,255}$/u</mask>
+                    <mask>/^[^\t^,^;^\.^\[^\]^\{^\}]{1,255}$/u</mask>
                     <ValidationMessage>Should be a string between 1 and 255 characters.</ValidationMessage>
                     <Required>Y</Required>
                 </name>
@@ -1681,7 +1681,7 @@
                     <Required>Y</Required>
                 </enabled>
                 <name type="TextField">
-                    <mask>/^([0-9a-zA-Z_\-]){1,255}$/u</mask>
+                    <mask>/^[^\t^,^;^\.^\[^\]^\{^\}]{1,255}$/u</mask>
                     <ValidationMessage>Should be a string between 1 and 255 characters.</ValidationMessage>
                     <Required>Y</Required>
                 </name>
@@ -1701,7 +1701,7 @@
                     <Required>Y</Required>
                 </id>
                 <name type="TextField">
-                    <mask>/^([0-9a-zA-Z_\-]){1,255}$/u</mask>
+                    <mask>/^[^\t^,^;^\.^\[^\]^\{^\}]{1,255}$/u</mask>
                     <ValidationMessage>Should be a string between 1 and 255 characters.</ValidationMessage>
                     <Required>Y</Required>
                 </name>