diff --git a/platform/src-c/alloc/arena.c b/platform/src-c/alloc/arena.c
index 8ac3e89..603a178 100644
--- a/platform/src-c/alloc/arena.c
+++ b/platform/src-c/alloc/arena.c
@@ -1,4 +1,8 @@
-#include <alloc/arena.h>
+#include <librr/alloc/arena.h>
+#include <librr/strutil.h>
+#include <librr/memory.h>
+
+#include <stdlib.h>
 
 rr_arena_s rr_new_arena(usz_t capacity)
 {
@@ -28,7 +32,7 @@ void * rr_arena_alloc(rr_arena_s *arena, usz_t length)
     return block;
 }
 
-char * rr_arena_clone_string(rr_arena_s *arena, char *string)
+char * rr_arena_clone_string(rr_arena_s *arena, const char *string)
 {
     usz_t len_string = rr_measure_string(string);
     char *cloned_string = rr_arena_alloc(arena, len_string+1);