diff --git a/crates/eips/src/eip4844/sidecar.rs b/crates/eips/src/eip4844/sidecar.rs
index f357ba91b2b..8273344dde0 100644
--- a/crates/eips/src/eip4844/sidecar.rs
+++ b/crates/eips/src/eip4844/sidecar.rs
@@ -455,18 +455,8 @@ pub enum BlobTransactionValidationError {
     },
 }
 
-#[cfg(all(feature = "kzg", feature = "std"))]
-impl std::error::Error for BlobTransactionValidationError {
-    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
-        match self {
-            Self::KZGError(source) => Some(source),
-            Self::InvalidProof { .. }
-            | Self::NotBlobTransaction { .. }
-            | Self::MissingSidecar { .. }
-            | Self::WrongVersionedHash { .. } => None,
-        }
-    }
-}
+#[cfg(feature = "kzg")]
+impl core::error::Error for BlobTransactionValidationError {}
 
 #[cfg(feature = "kzg")]
 impl core::fmt::Display for BlobTransactionValidationError {