diff --git a/mongoose.h b/mongoose.h
index 753da1e9..9389ffd6 100644
--- a/mongoose.h
+++ b/mongoose.h
@@ -311,10 +311,6 @@ static __inline struct tm *localtime_r(time_t *t, struct tm *tm) {
 #endif
 
 
-#ifndef MG_ENABLE_LWIP
-#define MG_ENABLE_LWIP 0
-#endif
-
 #ifndef MG_ENABLE_SOCKET
 #define MG_ENABLE_SOCKET 1
 #endif
@@ -343,10 +339,6 @@ static __inline struct tm *localtime_r(time_t *t, struct tm *tm) {
 #define MG_ENABLE_LOG 1
 #endif
 
-#ifndef MG_ENABLE_MGOS
-#define MG_ENABLE_MGOS 0
-#endif
-
 #ifndef MG_ENABLE_MD5
 #define MG_ENABLE_MD5 0
 #endif
@@ -410,9 +402,6 @@ const char *mg_strstr(const struct mg_str haystack, const struct mg_str needle);
 
 
 
-#if MG_ENABLE_MGOS
-#include <common/cs_dbg.h>
-#else
 #if MG_ENABLE_LOG
 #define LOG(level, args)                                                   \
   do {                                                                     \
@@ -426,7 +415,6 @@ void mg_log_set_callback(void (*fn)(const void *, int, void *), void *param);
 #else
 #define LOG(level, args)
 #endif
-#endif
 
 
 struct mg_timer {
diff --git a/src/config.h b/src/config.h
index 4cbe49a7..86030697 100644
--- a/src/config.h
+++ b/src/config.h
@@ -1,9 +1,5 @@
 #pragma once
 
-#ifndef MG_ENABLE_LWIP
-#define MG_ENABLE_LWIP 0
-#endif
-
 #ifndef MG_ENABLE_SOCKET
 #define MG_ENABLE_SOCKET 1
 #endif
@@ -32,10 +28,6 @@
 #define MG_ENABLE_LOG 1
 #endif
 
-#ifndef MG_ENABLE_MGOS
-#define MG_ENABLE_MGOS 0
-#endif
-
 #ifndef MG_ENABLE_MD5
 #define MG_ENABLE_MD5 0
 #endif
diff --git a/src/log.h b/src/log.h
index 245c7211..fc3c94f9 100644
--- a/src/log.h
+++ b/src/log.h
@@ -3,9 +3,6 @@
 #include "arch.h"
 #include "config.h"
 
-#if MG_ENABLE_MGOS
-#include <common/cs_dbg.h>
-#else
 #if MG_ENABLE_LOG
 #define LOG(level, args)                                                   \
   do {                                                                     \
@@ -19,4 +16,3 @@ void mg_log_set_callback(void (*fn)(const void *, int, void *), void *param);
 #else
 #define LOG(level, args)
 #endif
-#endif