diff --git a/lib/wasi/Cargo.toml b/lib/wasi/Cargo.toml
index f5fa6011c57..bcead472aba 100644
--- a/lib/wasi/Cargo.toml
+++ b/lib/wasi/Cargo.toml
@@ -37,7 +37,7 @@ sha2 = { version = "0.10" }
 waker-fn = { version = "1.1" }
 cooked-waker = "^5"
 rand = "0.8"
-tokio = { version = "1", features = ["sync", "macros", "time"], default_features = false }
+tokio = { version = "1", features = ["sync", "macros", "time", "rt"], default_features = false }
 futures = { version = "0.3" }
 # used by feature='os'
 async-trait = { version = "^0.1" }