diff --git a/tools/sdk/lwip/include/arch/cc.h b/tools/sdk/lwip/include/arch/cc.h
index 3633f6740b..773abd55ff 100644
--- a/tools/sdk/lwip/include/arch/cc.h
+++ b/tools/sdk/lwip/include/arch/cc.h
@@ -39,6 +39,7 @@
 #include "ets_sys.h"
 #include "osapi.h"
 #define EFAULT 14
+#include <sys/pgmspace.h>
 
 //#define LWIP_PROVIDE_ERRNO