diff --git a/include/posix/sys/types.h b/include/posix/sys/types.h
index 41a2e02634a..5e657e505ff 100644
--- a/include/posix/sys/types.h
+++ b/include/posix/sys/types.h
@@ -15,9 +15,17 @@ extern "C" {
 #include_next <sys/types.h>
 #endif
 
-#ifdef CONFIG_PTHREAD_IPC
 #include <kernel.h>
 
+typedef unsigned long useconds_t;
+
+/* time related attributes */
+#ifndef CONFIG_NEWLIB_LIBC
+typedef u32_t clockid_t;
+#endif /*CONFIG_NEWLIB_LIBC */
+typedef unsigned long timer_t;
+
+#ifdef CONFIG_PTHREAD_IPC
 /* Thread attributes */
 typedef struct pthread_attr_t {
 	int priority;
@@ -65,13 +73,6 @@ typedef struct pthread_barrier {
 typedef struct pthread_barrierattr {
 } pthread_barrierattr_t;
 
-/* time related attributes */
-#ifndef CONFIG_NEWLIB_LIBC
-typedef u32_t clockid_t;
-#endif /*CONFIG_NEWLIB_LIBC */
-typedef unsigned long timer_t;
-typedef unsigned long useconds_t;
-
 typedef u32_t pthread_rwlockattr_t;
 
 typedef struct pthread_rwlock_obj {