diff --git a/cmds/cmds.ts b/cmds/cmds.ts
index 727387d5..f4b99f42 100644
--- a/cmds/cmds.ts
+++ b/cmds/cmds.ts
@@ -9,16 +9,16 @@ let execAsync: (cmd: string, options?: { cwd?: string }) => Promise<Buffer> = Pr
 let readDirAsync = Promise.promisify(fs.readdir)
 
 
-export function deployCoreAsync(res: ts.pxt.CompileResult) {
+export function deployCoreAsync(res: pxtc.CompileResult) {
     return getBitDrivesAsync()
         .then(drives => {
             if (drives.length == 0) {
                 console.log("cannot find any drives to deploy to")
             } else {
-                console.log(`copy ${ts.pxt.BINARY_HEX} to ` + drives.join(", "))
+                console.log(`copy ${pxtc.BINARY_HEX} to ` + drives.join(", "))
             }
             return Promise.map(drives, d =>
-                writeFileAsync(d + ts.pxt.BINARY_HEX, res.outfiles[ts.pxt.BINARY_HEX])
+                writeFileAsync(d + pxtc.BINARY_HEX, res.outfiles[pxtc.BINARY_HEX])
                     .then(() => {
                         console.log("wrote hex file to " + d)
                     }))
diff --git a/tests/base/tsconfig.json b/tests/base/tsconfig.json
new file mode 100644
index 00000000..1ba59f2c
--- /dev/null
+++ b/tests/base/tsconfig.json
@@ -0,0 +1,8 @@
+{
+    "compilerOptions": {
+        "target": "es5",
+        "noImplicitAny": true,
+        "outDir": "built",
+        "rootDir": "."
+    }
+}