diff --git a/macros/Cargo.toml b/macros/Cargo.toml
index 521088f..7407106 100644
--- a/macros/Cargo.toml
+++ b/macros/Cargo.toml
@@ -7,6 +7,6 @@ edition = "2021"
 proc-macro = true
 
 [dependencies]
-syn = "2"
+syn = { version = "2", features = ["full"] }
 proc-macro2 = "1"
 quote = "1"