diff --git a/src/header/dirent/cbindgen.toml b/src/header/dirent/cbindgen.toml
index 6e8d9fbba9..c271bc5410 100644
--- a/src/header/dirent/cbindgen.toml
+++ b/src/header/dirent/cbindgen.toml
@@ -6,6 +6,7 @@ include_guard = "_RELIBC_DIRENT_H"
 language = "C"
 style = "Both"
 after_includes = """
+#include <features.h>  // __deprecated
 #include <bits/size-t.h>   // for size_t from sys/types.h
 #include <bits/ssize-t.h>  // for ssize_t from sys/types.h
 #include <bits/ino-t.h>    // for ino_t from sys/types.h
diff --git a/src/header/stdlib/cbindgen.toml b/src/header/stdlib/cbindgen.toml
index 7e8b9ec42d..cb5abf3266 100644
--- a/src/header/stdlib/cbindgen.toml
+++ b/src/header/stdlib/cbindgen.toml
@@ -15,6 +15,7 @@
 sys_includes = ["stddef.h", "sys/wait.h", "stdint.h"]
 include_guard = "_RELIBC_STDLIB_H"
 after_includes = """
+#include <features.h>  // __deprecated
 #include <bits/open-flags.h> // for O_* constants, shared with fcntl.h
 """
 trailer = """
diff --git a/src/header/unistd/cbindgen.toml b/src/header/unistd/cbindgen.toml
index a998d91c62..7047977e46 100644
--- a/src/header/unistd/cbindgen.toml
+++ b/src/header/unistd/cbindgen.toml
@@ -19,6 +19,7 @@
 sys_includes = ["stddef.h", "stdint.h", "fcntl.h"]
 include_guard = "_RELIBC_UNISTD_H"
 after_includes = """
+#include <features.h>  // __deprecated
 #include <bits/ssize-t.h>    // for ssize_t from sys/types.h
 // for deprecated ualarm and usleep
 #include <bits/useconds-t.h> // for useconds_t from sys/types.h