diff --git a/crates/dbx-core/src/db/mysql.rs b/crates/dbx-core/src/db/mysql.rs
index f3ea47dbcc..becc2ccfa6 100644
--- a/crates/dbx-core/src/db/mysql.rs
+++ b/crates/dbx-core/src/db/mysql.rs
@@ -751,8 +751,10 @@ fn mysql_group_concat_setup_fallback_mode(setup_mode: MySqlSetupMode, error: &st
     }
 
     let lower = error.to_ascii_lowercase();
-    let setup_query_rejected =
-        lower.contains("1193") || lower.contains("unknown system variable") || lower.contains("syntax error");
+    let setup_query_rejected = lower.contains("1193")
+        || lower.contains("unknown system variable")
+        || lower.contains("syntax error")
+        || lower.contains("not supported");
     let sphinxql_setup_query_rejected = lower.contains("sphinxql")
         && lower.contains("only 0 and 1 could be used as boolean values")
         && lower.contains(&format!("near '{MYSQL_GROUP_CONCAT_MAX_LEN}'"));
@@ -4863,6 +4865,17 @@ UNIQUE KEY(`tenant_id`, `name``part`)
         );
     }
 
+    #[test]
+    fn mysql_group_concat_not_supported_error_retries_without_session_variable() {
+        let error =
+            "MySQL connection failed: Server error: `ERROR 1235 (42000): SET of group_concat_max_len is not supported'";
+
+        assert_eq!(
+            mysql_group_concat_setup_fallback_mode(MySqlSetupMode::Standard, error),
+            Some(MySqlSetupMode::Compatible)
+        );
+    }
+
     #[test]
     fn mysql_sphinxql_group_concat_boolean_error_retries_without_session_variable() {
         let error = "MySQL connection failed: Server error: `ERROR 42000 (1064): sphinxql: only 0 and 1 could be used as boolean values near '1048576'`";