diff --git a/pxtarget.json b/pxtarget.json
index df63fd2b..7173cf5e 100644
--- a/pxtarget.json
+++ b/pxtarget.json
@@ -10,6 +10,7 @@
         "libs/radio",
         "libs/devices",
         "libs/bluetooth",
+        "libs/pxt-calliope-esp",
         "libs/pxt-calliope-bc95",
         "libs/pxt-calliope-bunt",
         "libs/Grove"