diff --git a/uefi-test-runner/aarch64-unknown-uefi.json b/uefi-test-runner/aarch64-unknown-uefi.json
deleted file mode 100644
index a61881893..000000000
--- a/uefi-test-runner/aarch64-unknown-uefi.json
+++ /dev/null
@@ -1,27 +0,0 @@
-{
-  "arch": "aarch64",
-  "data-layout": "e-m:e-i64:64-f80:128-n8:16:32:64-S128",
-  "default-hidden-visibility": true,
-  "emit-debug-gdb-scripts": false,
-  "exe-suffix": ".efi",
-  "executables": true,
-  "is-like-windows": true,
-  "linker": "rust-lld",
-  "linker-flavor": "lld-link",
-  "llvm-target": "aarch64-pc-windows-msvc",
-  "os": "uefi",
-  "panic-strategy": "abort",
-  "pre-link-args": {
-    "lld-link": [
-      "/subsystem:EFI_Application",
-      "/entry:efi_main",
-      "/machine:arm64"
-    ]
-  },
-  "stack-probes": {
-    "kind": "call"
-  },
-  "target-c-int-width": "32",
-  "target-endian": "little",
-  "target-pointer-width": "64"
-}
diff --git a/uefi-test-runner/build.py b/uefi-test-runner/build.py
index 6cde1aee2..d2cead970 100755
--- a/uefi-test-runner/build.py
+++ b/uefi-test-runner/build.py
@@ -69,11 +69,6 @@ def run_tool(tool, *flags):
     'Runs cargo-<tool> with certain arguments.'
 
     target = get_target_triple()
-    # Custom targets need to be given by relative path, instead of only by name
-    # We need to append a `.json` to turn the triple into a path
-    if SETTINGS['arch'] == 'aarch64':
-        target += '.json'
-
     cmd = ['cargo', tool, '--target', target, *flags]
 
     if SETTINGS['verbose']: