diff --git a/tests/headers/posix/utmpx_h.c b/tests/headers/posix/utmpx_h.c
new file mode 100644
index 0000000..44dfac9
--- /dev/null
+++ b/tests/headers/posix/utmpx_h.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <utmpx.h>
+
+#include "header_checks.h"
+
+static void utmpx_h() {
+  TYPE(struct utmpx);
+  STRUCT_MEMBER_ARRAY(struct utmpx, char/*[]*/, ut_user);
+  STRUCT_MEMBER_ARRAY(struct utmpx, char/*[]*/, ut_id);
+  STRUCT_MEMBER_ARRAY(struct utmpx, char/*[]*/, ut_line);
+  STRUCT_MEMBER(struct utmpx, pid_t, ut_pid);
+  STRUCT_MEMBER(struct utmpx, short, ut_type);
+#if !defined(__GLIBC__)
+  // POSIX says struct timeval, but glibc has an anonymous struct.
+  STRUCT_MEMBER(struct utmpx, struct timeval, ut_tv);
+#endif
+
+  TYPE(pid_t);
+  TYPE(struct timeval);
+
+  MACRO(EMPTY);
+  MACRO(BOOT_TIME);
+  MACRO(OLD_TIME);
+  MACRO(NEW_TIME);
+  MACRO(USER_PROCESS);
+  MACRO(INIT_PROCESS);
+  MACRO(LOGIN_PROCESS);
+  MACRO(DEAD_PROCESS);
+
+  FUNCTION(endutxent, void (*f)(void));
+  FUNCTION(getutxent, struct utmpx* (*f)(void));
+  FUNCTION(getutxid, struct utmpx* (*f)(const struct utmpx*));
+  FUNCTION(getutxline, struct utmpx* (*f)(const struct utmpx*));
+  FUNCTION(pututxline, struct utmpx* (*f)(const struct utmpx*));
+  FUNCTION(setutxent, void (*f)(void));
+}