diff --git a/PokemonTcgSdk.Standard.Tests/FilterTests.cs b/PokemonTcgSdk.Standard.Tests/FilterTests.cs
index 6f62855..b3b18f2 100644
--- a/PokemonTcgSdk.Standard.Tests/FilterTests.cs
+++ b/PokemonTcgSdk.Standard.Tests/FilterTests.cs
@@ -14,7 +14,7 @@ public void SetFilters_ReturnPopulatedDictionary()
         // assemble
         var dicObj = new SetFilterCollection<string, string>
         {
-            {"Name", "Darkness Ablaze"}
+            {"name", "Darkness Ablaze"}
         };
 
         // act
@@ -31,7 +31,7 @@ public void SetFilters_ReturnMulitplePopulatedDictionary()
         // assemble
         var dicObj = new Dictionary<string, string>
         {
-            {"Name", "Darkness Ablaze,Lost Origins"}
+            {"name", "Darkness Ablaze,Lost Origins"}
         };
 
         // act
diff --git a/PokemonTcgSdk.Standard/Extensions/StringExtensions.cs b/PokemonTcgSdk.Standard/Extensions/StringExtensions.cs
index d11ece0..ccc8312 100644
--- a/PokemonTcgSdk.Standard/Extensions/StringExtensions.cs
+++ b/PokemonTcgSdk.Standard/Extensions/StringExtensions.cs
@@ -57,4 +57,14 @@ public static string HasSpaces(this string str)
 
         return str;
     }
+
+    public static string ToCamelCase(this string str)
+    {
+        if (!string.IsNullOrEmpty(str))
+        {
+            return char.ToLowerInvariant(str[0]) + str.Substring(1);
+        }
+
+        return str;
+    }
 }
\ No newline at end of file
diff --git a/PokemonTcgSdk.Standard/Features/FilterBuilder/Set/SetFilter.cs b/PokemonTcgSdk.Standard/Features/FilterBuilder/Set/SetFilter.cs
index d2b8661..65fe10c 100644
--- a/PokemonTcgSdk.Standard/Features/FilterBuilder/Set/SetFilter.cs
+++ b/PokemonTcgSdk.Standard/Features/FilterBuilder/Set/SetFilter.cs
@@ -1,6 +1,7 @@
 namespace PokemonTcgSdk.Standard.Features.FilterBuilder.Set;
 
 using Infrastructure.HttpClients.Set;
+using PokemonTcgSdk.Standard.Extensions;
 
 // TODO: Legalities Filters
 public static class SetFilter
@@ -24,7 +25,7 @@ public static SetFilterCollection<string, string> AddId(this SetFilterCollection
     /// <param name="value">The name value to add</param>
     public static SetFilterCollection<string, string> AddName(this SetFilterCollection<string, string> dictionary, string value)
     {
-        return AddOrUpdate(dictionary, nameof(Set.Name), value);
+        return AddOrUpdate(dictionary, nameof(Set.Name).ToLower(), value);
     }
 
     /// <summary>
@@ -35,7 +36,7 @@ public static SetFilterCollection<string, string> AddName(this SetFilterCollecti
     /// <param name="value">The name value to add</param>
     public static SetFilterCollection<string, string> AddSeries(this SetFilterCollection<string, string> dictionary, string value)
     {
-        return AddOrUpdate(dictionary, nameof(Set.Series), value);
+        return AddOrUpdate(dictionary, nameof(Set.Series).ToLower(), value);
     }
 
     /// <summary>
@@ -46,7 +47,7 @@ public static SetFilterCollection<string, string> AddSeries(this SetFilterCollec
     /// <param name="value">The name value to add</param>
     public static SetFilterCollection<string, string> AddPtcgoCode(this SetFilterCollection<string, string> dictionary, string value)
     {
-        return AddOrUpdate(dictionary, nameof(Set.PtcgoCode), value);
+        return AddOrUpdate(dictionary, nameof(Set.PtcgoCode).ToCamelCase(), value);
     }
 
     private static SetFilterCollection<string, string> AddOrUpdate(SetFilterCollection<string, string> dictionary, string key, string value)