diff --git a/porting/examples/nuttx/Make.defs b/porting/examples/nuttx/Make.defs
index f35d428e8..94a2a3e1d 100644
--- a/porting/examples/nuttx/Make.defs
+++ b/porting/examples/nuttx/Make.defs
@@ -48,8 +48,7 @@ INC = \
 
 INCLUDES := $(addprefix -I, $(INC))
 
-CFLAGS +=                    \
-    $(NIMBLE_CFLAGS)        \
+CFLAGS +=                   \
     $(INCLUDES)             \
     $(TINYCRYPT_CFLAGS)     \
     -DNIMBLE_CFG_CONTROLLER=0 -DOS_CFG_ALIGN_4=4 -DOS_CFG_ALIGNMENT=4 \