diff --git a/common/eth2/src/types.rs b/common/eth2/src/types.rs
index ca16fcd28a..45a2e4a103 100644
--- a/common/eth2/src/types.rs
+++ b/common/eth2/src/types.rs
@@ -1989,7 +1989,7 @@ impl<E: EthSpec> PublishBlockRequest<E> {
 
     /// SSZ decode with fork variant determined by `fork_name`.
     pub fn from_ssz_bytes(bytes: &[u8], fork_name: ForkName) -> Result<Self, DecodeError> {
-        if fork_name.deneb_enabled() {
+        if fork_name.deneb_enabled() && !fork_name.gloas_enabled() {
             let mut builder = ssz::SszDecoderBuilder::new(bytes);
             builder.register_anonymous_variable_length_item()?;
             builder.register_type::<KzgProofs<E>>()?;