diff --git a/src/nvim/ascii.h b/src/nvim/ascii.h
index cc9d1202c2..cce52c5250 100644
--- a/src/nvim/ascii.h
+++ b/src/nvim/ascii.h
@@ -11,6 +11,7 @@
 #include <stdbool.h>
 
 #include "nvim/func_attr.h"
+#include "nvim/os/os_defs.h"
 
 // Definitions of various common control characters.
 
diff --git a/src/nvim/profile.c b/src/nvim/profile.c
index ffc62c3c7e..97d7d77359 100644
--- a/src/nvim/profile.c
+++ b/src/nvim/profile.c
@@ -5,6 +5,7 @@
 #include "nvim/profile.h"
 #include "nvim/os/time.h"
 #include "nvim/func_attr.h"
+#include "nvim/os/os_defs.h"
 
 #include "nvim/globals.h"  // for the global `time_fd` (startuptime)