diff --git a/src/FilterLists.Services/SnapshotService/SnapshotDe.cs b/src/FilterLists.Services/SnapshotService/SnapshotDe.cs
index 40a40face..6b233d924 100644
--- a/src/FilterLists.Services/SnapshotService/SnapshotDe.cs
+++ b/src/FilterLists.Services/SnapshotService/SnapshotDe.cs
@@ -80,7 +80,7 @@ private static List<string> GetRawRules(string content)
             var rawRules = content.Split(new[] {"\r\n", "\r", "\n"}, StringSplitOptions.RemoveEmptyEntries).ToList();
             for (var i = 0; i < rawRules.Count; i++)
                 rawRules[i] = rawRules[i].LintStringForMySql();
-            return rawRules.Where(x => !string.IsNullOrWhiteSpace(x)).ToList();
+            return rawRules.Where(x => !string.IsNullOrWhiteSpace(x)).Distinct().ToList();
         }
 
         private IEnumerable<SnapshotBatchDe> GetSnapshotBatches(List<string> rawRules)