diff --git a/Cargo.lock b/Cargo.lock
index 03ecb162f3..07dfc55b10 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1312,7 +1312,7 @@ dependencies = [
  "pci_types",
  "pico-args",
  "plain",
- "redox-scheme 0.6.2",
+ "redox-scheme 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall",
  "serde",
 ]
diff --git a/drivers/pcid/Cargo.toml b/drivers/pcid/Cargo.toml
index 1238da80c2..a4d75f9431 100644
--- a/drivers/pcid/Cargo.toml
+++ b/drivers/pcid/Cargo.toml
@@ -19,7 +19,7 @@ log = "0.4"
 pci_types = "0.10"
 pico-args = { version = "0.5", features = ["combined-flags"] }
 plain = "0.2"
-redox-scheme = "0.6.2"
+redox-scheme = "0.8.2"
 redox_syscall = "0.5.9"
 serde = { version = "1", features = ["derive"] }
 
diff --git a/drivers/pcid/src/scheme.rs b/drivers/pcid/src/scheme.rs
index 59a96edf49..4da2ea15f7 100644
--- a/drivers/pcid/src/scheme.rs
+++ b/drivers/pcid/src/scheme.rs
@@ -203,7 +203,13 @@ impl SchemeSync for PciScheme {
         }
     }
 
-    fn call(&mut self, id: usize, payload: &mut [u8], metadata: &[u64]) -> Result<usize> {
+    fn call(
+        &mut self,
+        id: usize,
+        payload: &mut [u8],
+        metadata: &[u64],
+        _ctx: &CallerCtx,
+    ) -> Result<usize> {
         let handle = self.handles.get_mut(&id).ok_or(Error::new(EBADF))?;
 
         if handle.stat {