diff --git a/Cargo.toml b/Cargo.toml
index ec56fd4..6b823cd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,12 +14,16 @@ cfg-if = "^1.0.0"
 libc = "0.2.65"
 nix = { version = "0.27", features = ["ioctl"] }
 thiserror = "1.0.4"
-userfaultfd-sys = { path = "userfaultfd-sys", version = "^0.5.0" }
+userfaultfd-sys = { path = "userfaultfd-sys", version = "^0.5.0", default-features = false }
 
 [dev-dependencies]
 nix = { version = "0.27", features = ["poll", "mman", "feature"] }
 
 [features]
-default = []
+default = ["runtime"]
+
 linux4_14 = ["userfaultfd-sys/linux4_14", "nix/process"]
 linux5_7 = ["userfaultfd-sys/linux5_7"]
+
+runtime = ["userfaultfd-sys/runtime"]
+static = ["userfaultfd-sys/static"]
diff --git a/userfaultfd-sys/Cargo.toml b/userfaultfd-sys/Cargo.toml
index 9062ce7..4379dbe 100644
--- a/userfaultfd-sys/Cargo.toml
+++ b/userfaultfd-sys/Cargo.toml
@@ -13,10 +13,14 @@ build = "build.rs"
 cfg-if = "^1.0.0"
 
 [build-dependencies]
-bindgen = { version = "^0.68.1", default-features = false, features = ["runtime"]  }
+bindgen = { version = "^0.68.1", default-features = false }
 cc = "1.0"
 
 [features]
-default = []
+default = ["runtime"]
+
 linux4_14 = []
 linux5_7 = []
+
+runtime = ["bindgen/runtime"]
+static = ["bindgen/static"]