diff --git a/mlearning/cmsis/libcmsisdsp/Makefile b/mlearning/cmsis/libcmsisdsp/Makefile
index 902ea1d13..0da31d837 100644
--- a/mlearning/cmsis/libcmsisdsp/Makefile
+++ b/mlearning/cmsis/libcmsisdsp/Makefile
@@ -20,10 +20,10 @@
 
 include $(APPDIR)/Make.defs
 
-ifeq ($(CONFIG_EXTERNALS_CMSIS_DSP_ARM_MATH_MATRIX_CHECK),y)
+ifeq ($(CONFIG_CMSIS_DSP_ARM_MATH_MATRIX_CHECK),y)
 CFLAGS += -DARM_MATH_MATRIX_CHECK
 endif
-ifeq ($(CONFIG_EXTERNALS_CMSIS_DSP_ARM_MATH_ROUNDING),y)
+ifeq ($(CONFIG_CMSIS_DSP_ARM_MATH_ROUNDING),y)
 CFLAGS += -DARM_MATH_ROUNDING
 endif