diff --git a/libraries/PPP/src/ppp.c b/libraries/PPP/src/ppp.c
index 367091d05ef..fafd6cc4525 100644
--- a/libraries/PPP/src/ppp.c
+++ b/libraries/PPP/src/ppp.c
@@ -1,3 +1,5 @@
+#include "sdkconfig.h"
+#if CONFIG_LWIP_PPP_SUPPORT
 #include "esp_modem_api.h"
 
 esp_err_t _esp_modem_at(esp_modem_dce_t *dce_wrap, const char *at, char *p_out, int timeout){
@@ -23,3 +25,4 @@ esp_err_t _esp_modem_set_operator(esp_modem_dce_t *dce_wrap, int mode, int forma
 esp_err_t _esp_modem_set_network_bands(esp_modem_dce_t *dce_wrap, const char *mode, const int *bands, int size){
 	return esp_modem_set_network_bands(dce_wrap, mode, bands, size);
 }
+#endif // CONFIG_LWIP_PPP_SUPPORT