diff --git a/fluent-syntax/Cargo.toml b/fluent-syntax/Cargo.toml
index 2e05e58b..b8cf539a 100644
--- a/fluent-syntax/Cargo.toml
+++ b/fluent-syntax/Cargo.toml
@@ -38,7 +38,8 @@ glob = "0.3"
 
 [features]
 default = []
-json = ["serde", "serde_json"]
+serde = ["dep:serde"]
+json = ["serde", "dep:serde_json"]
 all-benchmarks = []
 
 [[bench]]