diff --git a/ports/unix/variants/dev/manifest.py b/ports/unix/variants/dev/manifest.py
new file mode 100644
index 0000000000..92a681116a
--- /dev/null
+++ b/ports/unix/variants/dev/manifest.py
@@ -0,0 +1,3 @@
+include("$(PORT_DIR)/variants/manifest.py")
+
+include("$(MPY_DIR)/extmod/uasyncio/manifest.py")
diff --git a/ports/unix/variants/dev/mpconfigvariant.h b/ports/unix/variants/dev/mpconfigvariant.h
index eb65134717..c2b959572a 100644
--- a/ports/unix/variants/dev/mpconfigvariant.h
+++ b/ports/unix/variants/dev/mpconfigvariant.h
@@ -30,3 +30,7 @@
 
 #define MICROPY_PY_SYS_SETTRACE (1)
 #define MICROPY_PY_URANDOM_EXTRA_FUNCS (1)
+
+#ifndef MICROPY_PY_UASYNCIO
+#define MICROPY_PY_UASYNCIO (1)
+#endif
diff --git a/ports/unix/variants/dev/mpconfigvariant.mk b/ports/unix/variants/dev/mpconfigvariant.mk
index bbd30b6238..8a63b233d8 100644
--- a/ports/unix/variants/dev/mpconfigvariant.mk
+++ b/ports/unix/variants/dev/mpconfigvariant.mk
@@ -1,5 +1,7 @@
 PROG ?= micropython-dev
 
+FROZEN_MANIFEST ?= $(VARIANT_DIR)/manifest.py
+
 MICROPY_ROM_TEXT_COMPRESSION = 1
 
 MICROPY_PY_BLUETOOTH = 1