diff --git a/pythnet/pythnet_sdk/src/messages.rs b/pythnet/pythnet_sdk/src/messages.rs
index 4444bb2717..6462800532 100644
--- a/pythnet/pythnet_sdk/src/messages.rs
+++ b/pythnet/pythnet_sdk/src/messages.rs
@@ -100,7 +100,8 @@ pub type Pubkey = [u8; 32];
 )]
 
 pub struct PriceFeedMessage {
-    pub feed_id:           FeedId,
+    /// `FeedId` but avoid the type alias because of compatibility issues with Anchor's `idl-build` feature.
+    pub feed_id:           [u8; 32],
     pub price:             i64,
     pub conf:              u64,
     pub exponent:          i32,