diff --git a/templates/user/info.mako b/templates/user/info.mako
index 130b9fd27e2..c7a17eb2dfc 100644
--- a/templates/user/info.mako
+++ b/templates/user/info.mako
@@ -102,15 +102,15 @@
                         <input type="hidden" id="name_input" name="username" value="${username | h}"/>
                         ${username | h}
                         <div class="toolParamHelp" style="clear: both;">
-                            You cannot change your public name after you have created a repository in this tool shed.
+                            You cannot change your public name after you have created a repository in this Tool Shed.
                         </div>
                     %else:
                         <input type="text" id="name_input" name="username" size="40" value="${username | h}"/>
                         <div class="toolParamHelp" style="clear: both;">
-                            Your public name provides a means of identifying you publicly within this tool shed. Public
+                            Your public name provides a means of identifying you publicly within this Tool Shed. Public
                             names must be at least three characters in length and contain only lower-case letters, numbers,
-                            and the '-' character.  You cannot change your public name after you have created a repository
-                            in this tool shed.
+                            dots, underscores, and dashes ('.', '_', '-').  You cannot change your public name after you have created a repository
+                            in this Tool Shed.
                         </div>
                     %endif
                 %else:
@@ -118,7 +118,7 @@
                     <div class="toolParamHelp" style="clear: both;">
                         Your public name is an identifier that will be used to generate addresses for information
                         you share publicly. Public names must be at least three characters in length and contain only lower-case
-                        letters, numbers, and the '-' character.
+                        letters, numbers, dots, underscores, and dashes ('.', '_', '-').
                     </div>
                 %endif
             </div>
diff --git a/templates/user/register.mako b/templates/user/register.mako
index 3500b3d8feb..7de41b2440c 100644
--- a/templates/user/register.mako
+++ b/templates/user/register.mako
@@ -153,15 +153,15 @@ def inherit(context):
                 %if t.webapp.name == 'galaxy':
                     <div class="toolParamHelp" style="clear: both;">
                         Your public name is an identifier that will be used to generate addresses for information
-                        you share publicly. Public names must be at least three characters in length and contain only lower-case
-                        letters, numbers, and the '-' character.
+                        you share publicly. Public names must be at least three characters in length and contain only
+                        lower-case letters, numbers, dots, underscores, and dashes ('.', '_', '-').
                     </div>
                 %else:
                     <div class="toolParamHelp" style="clear: both;">
                         Your public name provides a means of identifying you publicly within this tool shed. Public
                         names must be at least three characters in length and contain only lower-case letters, numbers,
-                        and the '-' character.  You cannot change your public name after you have created a repository
-                        in this tool shed.
+                        dots, underscores, and dashes ('.', '_', '-'). You cannot change your public name after you have
+                        created a repository in this Tool Shed.
                     </div>
                 %endif
             </div>
diff --git a/templates/user/username.mako b/templates/user/username.mako
index 118b2c6eb05..adb922f8545 100644
--- a/templates/user/username.mako
+++ b/templates/user/username.mako
@@ -17,7 +17,7 @@
             <div class="toolParamHelp" style="clear: both;">
                 Your public name is an identifier that will be used to generate addresses for information
                 you share publicly. Public names must be at least four characters in length and contain only lower-case
-                letters, numbers, and the '-' character.
+                letters, numbers, dots, underscores, and dashes ('.', '_', '-').
             </div>
         </div>
         <div class="form-row">