diff --git a/README.md b/README.md
new file mode 100644
index 0000000..65c2e8c
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+# getauxval-backport
+
+Simple backport of libc's `getauxval(3)` for legacy glibc
diff --git a/getauxval.c b/getauxval.c
index 4428571..28acb0f 100644
--- a/getauxval.c
+++ b/getauxval.c
@@ -7,12 +7,14 @@ typedef Elf64_auxv_t __auxv_t;
 typedef Elf32_auxv_t __auxv_t;
 #endif
 
+#define AUXV_FILE "/proc/self/auxv"
+
 unsigned long getauxval(unsigned long type) {
 #ifdef GETAUXVAL_BACKPORT_DEBUG
   printf("getauxval: search started for type: %lu\n", type);
 #endif
 
-  FILE *f = fopen("/proc/self/auxv", "rb");
+  FILE *f = fopen(AUXV_FILE, "rb");
   if (f == NULL)
     return 1;