diff --git a/src/arena.h b/src/arena.h
index 14e64b8..7512beb 100644
--- a/src/arena.h
+++ b/src/arena.h
@@ -39,7 +39,7 @@ struct ATemp {
     U64 total_offset;
 };
 #ifndef ArenaOptions_Default
-#define ArenaOptions_Default (&(ArenaOptions){ .size = MB(32), .commit_size = KB(64) })
+#define ArenaOptions_Default ((ArenaOptions){ .size = MB(32), .commit_size = KB(64) })
 #endif
 
 StaticAssert(sizeof(MemoryBlock) <= 64);
diff --git a/src/main.c b/src/main.c
index 1edc914..69d2ae5 100644
--- a/src/main.c
+++ b/src/main.c
@@ -269,7 +269,7 @@ void apool_test(void)
     TRACEF("\n");
 
     Arena arena;
-    arena_init(&arena, ArenaOptions_Default);
+    arena_init(&arena, &ArenaOptions_Default);
     Allocator allocator = arena_allocator(&arena);
     APool *pool = apool_create_ex(&allocator, 16, sizeof(PoolTest), alignof(PoolTest));
     PoolTest *list = NULL;
@@ -315,7 +315,7 @@ void apool_test_autogrow(void)
     TRACEF("\n");
 
     Arena arena;
-    arena_init(&arena, ArenaOptions_Default);
+    arena_init(&arena, &ArenaOptions_Default);
     Allocator allocator = arena_allocator(&arena);
 
     APool *pool = apool_create(&allocator, APOOL_AUTOGROW, PoolTest);