diff --git a/gossip/src/contact_info.rs b/gossip/src/contact_info.rs
index e885ecd4f44bc0..faef80cbfe08b5 100644
--- a/gossip/src/contact_info.rs
+++ b/gossip/src/contact_info.rs
@@ -31,6 +31,8 @@ const SOCKET_TAG_TPU_FORWARDS_QUIC: u8 = 8;
 const SOCKET_TAG_TPU_VOTE: u8 = 9;
 const SOCKET_TAG_TVU: u8 = 10;
 const SOCKET_TAG_TVU_FORWARDS: u8 = 11;
+#[cfg(test)]
+static_assertions::const_assert_eq!(SOCKET_CACHE_SIZE, 12);
 const SOCKET_CACHE_SIZE: usize = SOCKET_TAG_TVU_FORWARDS as usize + 1usize;
 
 #[derive(Debug, Error)]