diff --git a/ports/cef/Cargo.toml b/ports/cef/Cargo.toml
index 17f495dce78..41901fe360b 100644
--- a/ports/cef/Cargo.toml
+++ b/ports/cef/Cargo.toml
@@ -10,7 +10,6 @@ crate-type = ["dylib"]
 
 [profile.release]
 opt-level = 3
-codegen-units = 4
 # Uncomment to profile on Linux:
 # debug = true
 # lto = false