diff --git a/mongoose.c b/mongoose.c
index 0023cfd3..584546a0 100644
--- a/mongoose.c
+++ b/mongoose.c
@@ -907,54 +907,6 @@ bool mg_file_printf(struct mg_fs *fs, const char *path, const char *fmt, ...) {
   return result;
 }
 
-#ifdef MG_ENABLE_LINES
-#line 1 "src/fs_dummy.c"
-#endif
-
-
-static int d_stat(const char *path, size_t *size, time_t *mtime) {
-  (void) path, (void) size, (void) mtime;
-  return 0;
-}
-static void d_list(const char *path, void (*fn)(const char *, void *),
-                   void *userdata) {
-  (void) path, (void) fn, (void) userdata;
-}
-static void *d_open(const char *path, int flags) {
-  (void) path, (void) flags;
-  return NULL;
-}
-static void d_close(void *fp) {
-  (void) fp;
-}
-static size_t d_read(void *fd, void *buf, size_t len) {
-  (void) fd, (void) buf, (void) len;
-  return 0;
-}
-static size_t d_write(void *fd, const void *buf, size_t len) {
-  (void) fd, (void) buf, (void) len;
-  return 0;
-}
-static size_t d_seek(void *fd, size_t offset) {
-  (void) fd, (void) offset;
-  return (size_t) ~0;
-}
-static bool d_rename(const char *from, const char *to) {
-  (void) from, (void) to;
-  return false;
-}
-static bool d_remove(const char *path) {
-  (void) path;
-  return false;
-}
-static bool d_mkdir(const char *path) {
-  (void) path;
-  return false;
-}
-
-struct mg_fs mg_fs_dummy = {d_stat,  d_list, d_open,   d_close,  d_read,
-                            d_write, d_seek, d_rename, d_remove, d_mkdir};
-
 #ifdef MG_ENABLE_LINES
 #line 1 "src/fs_fat.c"
 #endif
@@ -1413,6 +1365,47 @@ static bool p_mkdir(const char *path) {
   return mkdir(path, 0775) == 0;
 }
 
+#else
+
+static int p_stat(const char *path, size_t *size, time_t *mtime) {
+  (void) path, (void) size, (void) mtime;
+  return 0;
+}
+static void p_list(const char *path, void (*fn)(const char *, void *),
+                   void *userdata) {
+  (void) path, (void) fn, (void) userdata;
+}
+static void *p_open(const char *path, int flags) {
+  (void) path, (void) flags;
+  return NULL;
+}
+static void p_close(void *fp) {
+  (void) fp;
+}
+static size_t p_read(void *fd, void *buf, size_t len) {
+  (void) fd, (void) buf, (void) len;
+  return 0;
+}
+static size_t p_write(void *fd, const void *buf, size_t len) {
+  (void) fd, (void) buf, (void) len;
+  return 0;
+}
+static size_t p_seek(void *fd, size_t offset) {
+  (void) fd, (void) offset;
+  return (size_t) ~0;
+}
+static bool p_rename(const char *from, const char *to) {
+  (void) from, (void) to;
+  return false;
+}
+static bool p_remove(const char *path) {
+  (void) path;
+  return false;
+}
+static bool p_mkdir(const char *path) {
+  (void) path;
+  return false;
+}
 #endif
 
 struct mg_fs mg_fs_posix = {p_stat,  p_list, p_open,   p_close,  p_read,
diff --git a/mongoose.h b/mongoose.h
index 04b59367..0b537e0c 100644
--- a/mongoose.h
+++ b/mongoose.h
@@ -821,7 +821,6 @@ struct mg_fs {
   bool (*mkd)(const char *path);                        // Create directory
 };
 
-extern struct mg_fs mg_fs_dummy;   // Dummy FS, does nothing
 extern struct mg_fs mg_fs_posix;   // POSIX open/close/read/write/seek
 extern struct mg_fs mg_fs_packed;  // Packed FS, see examples/device-dashboard
 extern struct mg_fs mg_fs_fat;     // FAT FS
diff --git a/src/fs.h b/src/fs.h
index d16d9c31..bd4393be 100644
--- a/src/fs.h
+++ b/src/fs.h
@@ -25,7 +25,6 @@ struct mg_fs {
   bool (*mkd)(const char *path);                        // Create directory
 };
 
-extern struct mg_fs mg_fs_dummy;   // Dummy FS, does nothing
 extern struct mg_fs mg_fs_posix;   // POSIX open/close/read/write/seek
 extern struct mg_fs mg_fs_packed;  // Packed FS, see examples/device-dashboard
 extern struct mg_fs mg_fs_fat;     // FAT FS
diff --git a/src/fs_dummy.c b/src/fs_dummy.c
deleted file mode 100644
index 2ee3d78b..00000000
--- a/src/fs_dummy.c
+++ /dev/null
@@ -1,44 +0,0 @@
-#include "fs.h"
-
-static int d_stat(const char *path, size_t *size, time_t *mtime) {
-  (void) path, (void) size, (void) mtime;
-  return 0;
-}
-static void d_list(const char *path, void (*fn)(const char *, void *),
-                   void *userdata) {
-  (void) path, (void) fn, (void) userdata;
-}
-static void *d_open(const char *path, int flags) {
-  (void) path, (void) flags;
-  return NULL;
-}
-static void d_close(void *fp) {
-  (void) fp;
-}
-static size_t d_read(void *fd, void *buf, size_t len) {
-  (void) fd, (void) buf, (void) len;
-  return 0;
-}
-static size_t d_write(void *fd, const void *buf, size_t len) {
-  (void) fd, (void) buf, (void) len;
-  return 0;
-}
-static size_t d_seek(void *fd, size_t offset) {
-  (void) fd, (void) offset;
-  return (size_t) ~0;
-}
-static bool d_rename(const char *from, const char *to) {
-  (void) from, (void) to;
-  return false;
-}
-static bool d_remove(const char *path) {
-  (void) path;
-  return false;
-}
-static bool d_mkdir(const char *path) {
-  (void) path;
-  return false;
-}
-
-struct mg_fs mg_fs_dummy = {d_stat,  d_list, d_open,   d_close,  d_read,
-                            d_write, d_seek, d_rename, d_remove, d_mkdir};
diff --git a/src/fs_posix.c b/src/fs_posix.c
index feabebfe..968b7a48 100644
--- a/src/fs_posix.c
+++ b/src/fs_posix.c
@@ -202,6 +202,47 @@ static bool p_mkdir(const char *path) {
   return mkdir(path, 0775) == 0;
 }
 
+#else
+
+static int p_stat(const char *path, size_t *size, time_t *mtime) {
+  (void) path, (void) size, (void) mtime;
+  return 0;
+}
+static void p_list(const char *path, void (*fn)(const char *, void *),
+                   void *userdata) {
+  (void) path, (void) fn, (void) userdata;
+}
+static void *p_open(const char *path, int flags) {
+  (void) path, (void) flags;
+  return NULL;
+}
+static void p_close(void *fp) {
+  (void) fp;
+}
+static size_t p_read(void *fd, void *buf, size_t len) {
+  (void) fd, (void) buf, (void) len;
+  return 0;
+}
+static size_t p_write(void *fd, const void *buf, size_t len) {
+  (void) fd, (void) buf, (void) len;
+  return 0;
+}
+static size_t p_seek(void *fd, size_t offset) {
+  (void) fd, (void) offset;
+  return (size_t) ~0;
+}
+static bool p_rename(const char *from, const char *to) {
+  (void) from, (void) to;
+  return false;
+}
+static bool p_remove(const char *path) {
+  (void) path;
+  return false;
+}
+static bool p_mkdir(const char *path) {
+  (void) path;
+  return false;
+}
 #endif
 
 struct mg_fs mg_fs_posix = {p_stat,  p_list, p_open,   p_close,  p_read,