diff --git a/pgrx-macros/src/lib.rs b/pgrx-macros/src/lib.rs
index 4e6291efc..14163d070 100644
--- a/pgrx-macros/src/lib.rs
+++ b/pgrx-macros/src/lib.rs
@@ -944,9 +944,9 @@ fn impl_postgres_type(ast: DeriveInput) -> syn::Result<proc_macro2::TokenStream>
         stream.extend(quote! {
             #[doc(hidden)]
             #[::pgrx::pgrx_macros::pg_extern(immutable,parallel_safe)]
-            pub fn #funcname_in #generics(input: Option<&#lifetime ::core::ffi::CStr>) -> Option<#name #generics> {
+            pub fn #funcname_in #generics(input: &#lifetime ::core::ffi::CStr) -> Option<#name #generics> {
                 use ::pgrx::inoutfuncs::json_from_slice;
-                input.map(|cstr| json_from_slice(cstr.to_bytes()).ok()).flatten()
+                json_from_slice(input.to_bytes()).ok()
             }
 
             #[doc(hidden)]
@@ -963,13 +963,8 @@ fn impl_postgres_type(ast: DeriveInput) -> syn::Result<proc_macro2::TokenStream>
         stream.extend(quote! {
             #[doc(hidden)]
             #[::pgrx::pgrx_macros::pg_extern(immutable,parallel_safe)]
-            pub fn #funcname_in #generics(input: Option<&::core::ffi::CStr>) -> Option<#name #generics> {
-                input.map_or_else(|| {
-                    for m in <#name as ::pgrx::inoutfuncs::InOutFuncs>::NULL_ERROR_MESSAGE {
-                        ::pgrx::pg_sys::error!("{m}");
-                    }
-                    None
-                }, |i| Some(<#name as ::pgrx::inoutfuncs::InOutFuncs>::input(i)))
+            pub fn #funcname_in #generics(input: &::core::ffi::CStr) -> Option<#name #generics> {
+                Some(<#name as ::pgrx::inoutfuncs::InOutFuncs>::input(input))
             }
 
             #[doc(hidden)]
@@ -986,13 +981,8 @@ fn impl_postgres_type(ast: DeriveInput) -> syn::Result<proc_macro2::TokenStream>
         stream.extend(quote! {
             #[doc(hidden)]
             #[::pgrx::pgrx_macros::pg_extern(immutable,parallel_safe)]
-            pub fn #funcname_in #generics(input: Option<&::core::ffi::CStr>) -> Option<::pgrx::datum::PgVarlena<#name #generics>> {
-                input.map_or_else(|| {
-                    for m in <#name as ::pgrx::inoutfuncs::PgVarlenaInOutFuncs>::NULL_ERROR_MESSAGE {
-                        ::pgrx::pg_sys::error!("{m}");
-                    }
-                    None
-                }, |i| Some(<#name as ::pgrx::inoutfuncs::PgVarlenaInOutFuncs>::input(i)))
+            pub fn #funcname_in #generics(input: &::core::ffi::CStr) -> Option<::pgrx::datum::PgVarlena<#name #generics>> {
+                Some(<#name as ::pgrx::inoutfuncs::PgVarlenaInOutFuncs>::input(input))
             }
 
             #[doc(hidden)]
diff --git a/pgrx-tests/src/tests/fcinfo_tests.rs b/pgrx-tests/src/tests/fcinfo_tests.rs
index eb07adc31..7948053e5 100644
--- a/pgrx-tests/src/tests/fcinfo_tests.rs
+++ b/pgrx-tests/src/tests/fcinfo_tests.rs
@@ -141,30 +141,13 @@ impl InOutFuncs for NullStrict {
     // doesn't define a NULL_ERROR_MESSAGE
 }
 
-#[derive(PostgresType, Serialize, Deserialize, Debug, PartialEq)]
-#[inoutfuncs]
-pub struct NullError {}
-
-impl InOutFuncs for NullError {
-    fn input(_input: &core::ffi::CStr) -> Self
-    where
-        Self: Sized,
-    {
-        NullError {}
-    }
-
-    fn output(&self, _buffer: &mut StringInfo) {}
-
-    const NULL_ERROR_MESSAGE: Option<&'static str> = Some("An error message");
-}
-
 #[cfg(any(test, feature = "pg_test"))]
 #[pgrx::pg_schema]
 mod tests {
     #[allow(unused_imports)]
     use crate as pgrx_tests;
 
-    use super::{NullError, NullStrict};
+    use super::NullStrict;
     use crate::tests::fcinfo_tests::same_name;
     use pgrx::prelude::*;
     use pgrx::{direct_pg_extern_function_call, IntoDatum};
@@ -319,10 +302,4 @@ mod tests {
     fn test_null_strict_type() {
         assert_eq!(Ok(None), Spi::get_one::<NullStrict>("SELECT null::NullStrict"));
     }
-
-    #[pg_test]
-    #[should_panic(expected = "An error message")]
-    fn test_null_error_type() {
-        Spi::get_one::<NullError>("SELECT null::NullError").unwrap();
-    }
 }