diff --git a/crates/core/src/database/auth.rs b/crates/core/src/database/auth.rs
index ee169d6..530a57b 100644
--- a/crates/core/src/database/auth.rs
+++ b/crates/core/src/database/auth.rs
@@ -1,3 +1,4 @@
+use super::common::NAME_REGEX;
 use super::*;
 use crate::cache::Cache;
 use crate::model::auth::UserConnections;
@@ -128,7 +129,7 @@ impl DataManager {
             return Err(Error::MiscError("This username cannot be used".to_string()));
         }
 
-        let regex = regex::RegexBuilder::new(r"[^\w_\-\.!]+")
+        let regex = regex::RegexBuilder::new(NAME_REGEX)
             .multi_line(true)
             .build()
             .unwrap();
diff --git a/crates/core/src/database/common.rs b/crates/core/src/database/common.rs
index 397cf00..1607ff7 100644
--- a/crates/core/src/database/common.rs
+++ b/crates/core/src/database/common.rs
@@ -6,6 +6,8 @@ use crate::{
 };
 use super::DataManager;
 
+pub const NAME_REGEX: &str = r"[^\w_\-\.,!]+";
+
 impl DataManager {
     pub async fn init(&self) -> Result<()> {
         let conn = match self.connect().await {
diff --git a/crates/core/src/database/communities.rs b/crates/core/src/database/communities.rs
index a7e8754..c682275 100644
--- a/crates/core/src/database/communities.rs
+++ b/crates/core/src/database/communities.rs
@@ -1,3 +1,4 @@
+use super::common::NAME_REGEX;
 use super::*;
 use crate::cache::Cache;
 use crate::model::communities::{CommunityContext, CommunityJoinAccess, CommunityMembership};
@@ -398,7 +399,7 @@ impl DataManager {
             return Err(Error::MiscError("This title cannot be used".to_string()));
         }
 
-        let regex = regex::RegexBuilder::new(r"[^\w_\-\.!]+")
+        let regex = regex::RegexBuilder::new(NAME_REGEX)
             .multi_line(true)
             .build()
             .unwrap();