diff --git a/.cargo/config b/.cargo/config
new file mode 100644
index 000000000..ac01e73cc
--- /dev/null
+++ b/.cargo/config
@@ -0,0 +1,2 @@
+[unstable]
+extra-link-arg = true
diff --git a/runkernel/.cargo/config b/runkernel/.cargo/config
deleted file mode 100644
index a12e0fb88..000000000
--- a/runkernel/.cargo/config
+++ /dev/null
@@ -1,3 +0,0 @@
-[build]
-rustflags = ["-C", "link-args=-rdynamic"]
-
diff --git a/runkernel/build.rs b/runkernel/build.rs
new file mode 100644
index 000000000..538285b19
--- /dev/null
+++ b/runkernel/build.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("cargo:rustc-link-arg=-rdynamic");
+}