diff --git a/.cargo/config.toml b/.cargo/config.toml
deleted file mode 100644
index 3c32d251c5..0000000000
--- a/.cargo/config.toml
+++ /dev/null
@@ -1,2 +0,0 @@
-[target.aarch64-unknown-linux-gnu]
-linker = "aarch64-linux-gnu-gcc"
diff --git a/tools/impl/test_target.py b/tools/impl/test_target.py
index feaebe2fcb..a2921cf485 100755
--- a/tools/impl/test_target.py
+++ b/tools/impl/test_target.py
@@ -50,6 +50,7 @@ Arch = Literal["x86_64", "aarch64", "armhf"]
 BUILD_ENV = {
     "PKG_CONFIG_aarch64_unknown_linux_gnu": "aarch64-linux-gnu-pkg-config",
     "PKG_CONFIG_armv7_unknown_linux_gnueabihf": "arm-linux-gnueabihf-pkg-config",
+    "CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER": "aarch64-linux-gnu-gcc",
 }