diff --git a/include/posix/unistd.h b/include/posix/unistd.h
index 4fd9d4c8d55..aa8040f4dcd 100644
--- a/include/posix/unistd.h
+++ b/include/posix/unistd.h
@@ -16,9 +16,6 @@ extern "C" {
 #ifdef CONFIG_POSIX_FS
 #include <fs.h>
 
-#undef PATH_MAX
-#define PATH_MAX        256
-
 typedef struct fs_dir_t DIR;
 typedef unsigned int mode_t;
 
diff --git a/lib/libc/minimal/include/limits.h b/lib/libc/minimal/include/limits.h
index b9b424c2d6c..d6757dd9bdc 100644
--- a/lib/libc/minimal/include/limits.h
+++ b/lib/libc/minimal/include/limits.h
@@ -48,6 +48,8 @@ extern "C" {
 #define ULONG_MAX   0xFFFFFFFFul
 #define ULLONG_MAX  0xFFFFFFFFFFFFFFFFull
 
+#define PATH_MAX    256
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/lib/posix/fs.c b/lib/posix/fs.c
index cc90f3cb231..70be3728e0d 100644
--- a/lib/posix/fs.c
+++ b/lib/posix/fs.c
@@ -4,12 +4,12 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-#include <kernel.h>
-#include <string.h>
 #include <errno.h>
+#include <kernel.h>
+#include <limits.h>
 #include <posix/pthread.h>
 #include <posix/unistd.h>
-
+#include <string.h>
 
 union file_desc {
 	struct fs_file_t file;