diff --git a/py/circuitpy_mpconfig.h b/py/circuitpy_mpconfig.h
index 0583ae1c97..5ffdd4c8f3 100644
--- a/py/circuitpy_mpconfig.h
+++ b/py/circuitpy_mpconfig.h
@@ -79,7 +79,6 @@
 
 #define MICROPY_PY_ARRAY                 (1)
 #define MICROPY_PY_ARRAY_SLICE_ASSIGN    (1)
-#define MICROPY_PY_ASYNC_AWAIT           (0)
 #define MICROPY_PY_ATTRTUPLE             (1)
 
 #define MICROPY_PY_BUILTINS_BYTEARRAY    (1)
diff --git a/py/circuitpy_mpconfig.mk b/py/circuitpy_mpconfig.mk
index 9b9bd83b4d..cab6d339e5 100644
--- a/py/circuitpy_mpconfig.mk
+++ b/py/circuitpy_mpconfig.mk
@@ -290,3 +290,6 @@ CFLAGS += -DCIRCUITPY_WIFI=$(CIRCUITPY_WIFI)
 # Enabled micropython.native decorator (experimental)
 CIRCUITPY_ENABLE_MPY_NATIVE ?= 0
 CFLAGS += -DCIRCUITPY_ENABLE_MPY_NATIVE=$(CIRCUITPY_ENABLE_MPY_NATIVE)
+
+# async/await language keyword support
+MICROPY_PY_ASYNC_AWAIT ?= $(CIRCUITPY_FULL_BUILD)