1 files changed, 3 insertions, 2 deletions
diff --git a/py/py.mk b/py/py.mk
index 5e044947a..bac237b7d 100644
--- a/py/py.mk
+++ b/py/py.mk
@@ -105,9 +105,10 @@ $(BUILD)/$(BTREE_DIR)/%.o: CFLAGS += -Wno-old-style-definition -Wno-sign-compare
 $(BUILD)/extmod/modbtree.o: CFLAGS += $(BTREE_DEFS)
 endif
 
-ifeq ($(MICROPY_PY_ULAB),1)
+ifeq ($(CIRCUITPY_ULAB),1)
 SRC_MOD += $(addprefix extmod/ulab/code/, \
 create.c \
+extras.c \
 fft.c \
 filter.c \
 linalg.c \
@@ -117,7 +118,7 @@ poly.c \
 ulab.c \
 vectorise.c \
 	)
-CFLAGS_MOD += -DMICROPY_PY_ULAB=1 -DMODULE_ULAB_ENABLED=1
+CFLAGS_MOD += -DCIRCUITPY_ULAB=1 -DMODULE_ULAB_ENABLED=1
 $(BUILD)/extmod/ulab/code/%.o: CFLAGS += -Wno-sign-compare -Wno-missing-prototypes -Wno-unused-parameter -Wno-missing-declarations -Wno-error -Wno-shadow -Wno-maybe-uninitialized -DCIRCUITPY
 endif