diff --git a/src/Kiota.Builder/Refiners/JavaRefiner.cs b/src/Kiota.Builder/Refiners/JavaRefiner.cs
index feb6ba62e2..33e63c41b7 100644
--- a/src/Kiota.Builder/Refiners/JavaRefiner.cs
+++ b/src/Kiota.Builder/Refiners/JavaRefiner.cs
@@ -141,7 +141,7 @@ public override Task Refine(CodeNamespace generatedCode, CancellationToken cance
             SplitLongDiscriminatorMethods(generatedCode);
             AddPrimaryErrorMessage(generatedCode,
                 "getMessage",
-                () => new CodeType { Name = "string", IsNullable = false, IsExternal = true }
+                () => new CodeType { Name = "String", IsNullable = false, IsExternal = true }
             );
         }, cancellationToken);
     }