diff --git a/src/groups/calls/mod.rs b/src/groups/calls/mod.rs
index 096e9c1..a5c4579 100644
--- a/src/groups/calls/mod.rs
+++ b/src/groups/calls/mod.rs
@@ -21,25 +21,35 @@ pub struct DisplayProfile {
     pub mask: Option<String>,
 }
 
+fn make_name_valid(name: String) -> String {
+    if name.len() == 1 {
+        format!("{name}\u{2800}")
+    } else if name.len() > 80 {
+        format!("{name:.80}")
+    } else {
+        name
+    }
+}
+
 fn get_display_profile(event: &MessageCreate) -> DisplayProfile {
     let member = event.member.clone();
 
-    let name = if let Some(nick) = &member.clone().and_then(|member| member.nick) {
+    let name = if let Some(nick) = &member.clone().and_then(|member| member.nick.map(make_name_valid)) {
         if webhook_username(nick).is_err() {
             "Invalid Nickname".to_string()
         } else {
             nick.clone()
         }
-    } else if let Some(name) = &event.author.global_name {
-        if webhook_username(name).is_err() {
+    } else if let Some(name) = event.author.global_name.clone().map(make_name_valid) {
+        if webhook_username(&name).is_err() {
             "Invalid Global Name".to_string()
         } else {
-            name.clone()
+            name
         }
-    } else if webhook_username(&event.author.name).is_err() {
+    } else if webhook_username(make_name_valid(event.author.name.clone())).is_err() {
         "Invalid Username".to_string()
     } else {
-        event.author.name.clone()
+        make_name_valid(event.author.name.clone())
     };
 
     let avatar_hash = member