diff --git a/src/Farfetch.IdentityServer.Contrib.TokenExchange/Extensions/ClaimsExtensions.cs b/src/Farfetch.IdentityServer.Contrib.TokenExchange/Extensions/ClaimsExtensions.cs
index 6a9d65d..5a4800b 100644
--- a/src/Farfetch.IdentityServer.Contrib.TokenExchange/Extensions/ClaimsExtensions.cs
+++ b/src/Farfetch.IdentityServer.Contrib.TokenExchange/Extensions/ClaimsExtensions.cs
@@ -37,7 +37,7 @@ public static string AuthenticationMethod(this IEnumerable<Claim> claims)
 
         private static string GetValue(this IEnumerable<Claim> claims, string type)
         {
-            var claim = claims?.SingleOrDefault(x => x.Type == type);
+            var claim = claims?.FirstOrDefault(x => x.Type == type);
 
             return claim?.Value;
         }