diff --git a/src/nvim/os/fileio.c b/src/nvim/os/fileio.c
index 6cee102305..cf5bfd60ae 100644
--- a/src/nvim/os/fileio.c
+++ b/src/nvim/os/fileio.c
@@ -4,7 +4,6 @@
 /// Neovim stuctures for buffer, with autocommands, etc: just fopen/fread/fwrite
 /// replacement.
 
-#include <unistd.h>
 #include <assert.h>
 #include <stddef.h>
 #include <stdbool.h>
diff --git a/src/nvim/os/fs.c b/src/nvim/os/fs.c
index d12d34d595..8c1c80bfad 100644
--- a/src/nvim/os/fs.c
+++ b/src/nvim/os/fs.c
@@ -3,7 +3,6 @@
 #include <stddef.h>
 #include <assert.h>
 #include <limits.h>
-#include <unistd.h>
 #include <fcntl.h>
 #include <errno.h>
 
diff --git a/src/nvim/os/pty_process_unix.c b/src/nvim/os/pty_process_unix.c
index 436de030ba..b57a69b82b 100644
--- a/src/nvim/os/pty_process_unix.c
+++ b/src/nvim/os/pty_process_unix.c
@@ -3,7 +3,6 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include <unistd.h>
 #include <termios.h>
 #include <sys/types.h>
 #include <sys/wait.h>