diff --git a/lib/posix/CMakeLists.txt b/lib/posix/CMakeLists.txt
index eb0c697d79b027..8b175436486a1b 100644
--- a/lib/posix/CMakeLists.txt
+++ b/lib/posix/CMakeLists.txt
@@ -19,26 +19,26 @@ if(CONFIG_POSIX_API OR CONFIG_PTHREAD_IPC OR CONFIG_POSIX_CLOCK OR
 endif()
 
 zephyr_library()
+add_subdirectory_ifdef(CONFIG_GETOPT getopt)
+zephyr_library_sources_ifdef(CONFIG_EVENTFD eventfd.c)
+zephyr_library_sources_ifdef(CONFIG_FNMATCH fnmatch.c)
 zephyr_library_sources_ifdef(CONFIG_POSIX_API perror.c)
-zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC pthread_common.c)
-zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC pthread_cond.c)
-zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC pthread_mutex.c)
-zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC pthread_barrier.c)
-zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC pthread.c)
-zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC pthread_sched.c)
-zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC pthread_spinlock.c)
 zephyr_library_sources_ifdef(CONFIG_POSIX_CLOCK clock.c)
 zephyr_library_sources_ifdef(CONFIG_POSIX_CLOCK nanosleep.c)
 zephyr_library_sources_ifdef(CONFIG_POSIX_CLOCK sleep.c)
 zephyr_library_sources_ifdef(CONFIG_POSIX_CLOCK timer.c)
-zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC pthread_rwlock.c)
-zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC semaphore.c)
-zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC pthread_key.c)
-zephyr_library_sources_ifdef(CONFIG_POSIX_MQUEUE mqueue.c)
 zephyr_library_sources_ifdef(CONFIG_POSIX_FS fs.c)
-zephyr_library_sources_ifdef(CONFIG_EVENTFD eventfd.c)
-zephyr_library_sources_ifdef(CONFIG_FNMATCH fnmatch.c)
-add_subdirectory_ifdef(CONFIG_GETOPT getopt)
+zephyr_library_sources_ifdef(CONFIG_POSIX_MQUEUE mqueue.c)
+zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC _common.c)
+zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC barrier.c)
+zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC cond.c)
+zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC key.c)
+zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC mutex.c)
+zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC pthread.c)
+zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC rwlock.c)
+zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC sched.c)
+zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC semaphore.c)
+zephyr_library_sources_ifdef(CONFIG_PTHREAD_IPC spinlock.c)
 
 zephyr_library_include_directories(
   ${ZEPHYR_BASE}/kernel/include
diff --git a/lib/posix/pthread_common.c b/lib/posix/_common.c
similarity index 100%
rename from lib/posix/pthread_common.c
rename to lib/posix/_common.c
diff --git a/lib/posix/pthread_barrier.c b/lib/posix/barrier.c
similarity index 100%
rename from lib/posix/pthread_barrier.c
rename to lib/posix/barrier.c
diff --git a/lib/posix/pthread_cond.c b/lib/posix/cond.c
similarity index 100%
rename from lib/posix/pthread_cond.c
rename to lib/posix/cond.c
diff --git a/lib/posix/pthread_key.c b/lib/posix/key.c
similarity index 100%
rename from lib/posix/pthread_key.c
rename to lib/posix/key.c
diff --git a/lib/posix/pthread_mutex.c b/lib/posix/mutex.c
similarity index 100%
rename from lib/posix/pthread_mutex.c
rename to lib/posix/mutex.c
diff --git a/lib/posix/pthread_rwlock.c b/lib/posix/rwlock.c
similarity index 100%
rename from lib/posix/pthread_rwlock.c
rename to lib/posix/rwlock.c
diff --git a/lib/posix/pthread_sched.c b/lib/posix/sched.c
similarity index 100%
rename from lib/posix/pthread_sched.c
rename to lib/posix/sched.c
diff --git a/lib/posix/pthread_spinlock.c b/lib/posix/spinlock.c
similarity index 100%
rename from lib/posix/pthread_spinlock.c
rename to lib/posix/spinlock.c