diff --git a/libs/libc/include/luna/os-limits.h b/libs/libc/include/luna/os-limits.h
index 4d1ebb27..6e62f706 100644
--- a/libs/libc/include/luna/os-limits.h
+++ b/libs/libc/include/luna/os-limits.h
@@ -5,6 +5,7 @@
 #define ATEXIT_MAX 32
 
 #define NAME_MAX 64
+#define PATH_MAX 4096
 
 #define PAGESIZE 4096
 #define PAGE_SIZE 4096