diff --git a/AgileConfig.Server.Data.Freesql/FreeSQL.cs b/AgileConfig.Server.Data.Freesql/FreeSQL.cs
index 550d9248..dabdd610 100644
--- a/AgileConfig.Server.Data.Freesql/FreeSQL.cs
+++ b/AgileConfig.Server.Data.Freesql/FreeSQL.cs
@@ -68,7 +68,7 @@ public static IFreeSql GetInstance(string env)
         
         private static FreeSql.DataType ProviderToFreesqlDbType(string provider)
         {
-            switch (provider)
+            switch (provider.ToLower())
             {
                 case "sqlite":
                     return FreeSql.DataType.Sqlite;
@@ -78,6 +78,8 @@ private static FreeSql.DataType ProviderToFreesqlDbType(string provider)
                     return FreeSql.DataType.SqlServer;
                 case "npgsql":
                     return FreeSql.DataType.PostgreSQL;
+                case "postgresql":
+                    return FreeSql.DataType.PostgreSQL;
                 case "oracle":
                     return FreeSql.DataType.Oracle;
                 default: