diff --git a/include/pthread.h b/include/posix/pthread.h
similarity index 100%
rename from include/pthread.h
rename to include/posix/pthread.h
diff --git a/kernel/CMakeLists.txt b/kernel/CMakeLists.txt
index 9c7fd979dd01..07ae850605ca 100644
--- a/kernel/CMakeLists.txt
+++ b/kernel/CMakeLists.txt
@@ -24,6 +24,7 @@ add_library(kernel
   work_q.c
 )
 
+target_include_directories(kernel PRIVATE ${PROJECT_SOURCE_DIR}/include/posix)
 target_sources_ifdef(CONFIG_INT_LATENCY_BENCHMARK kernel PRIVATE int_latency_bench.c)
 target_sources_ifdef(CONFIG_STACK_CANARIES        kernel PRIVATE compiler_stack_protect.c)
 target_sources_ifdef(CONFIG_SYS_CLOCK_EXISTS      kernel PRIVATE timer.c)
diff --git a/tests/kernel/pthread/CMakeLists.txt b/tests/kernel/pthread/CMakeLists.txt
index 92a4288bc1d8..1f0f8897775d 100644
--- a/tests/kernel/pthread/CMakeLists.txt
+++ b/tests/kernel/pthread/CMakeLists.txt
@@ -1,5 +1,6 @@
 include($ENV{ZEPHYR_BASE}/cmake/app/boilerplate.cmake NO_POLICY_SCOPE)
 project(NONE)
 
+target_include_directories(app PRIVATE $ENV{ZEPHYR_BASE}/include/posix)
 FILE(GLOB app_sources src/*.c)
 target_sources(app PRIVATE ${app_sources})