diff --git a/src/arena.c b/src/arena.c
index dbbc3ed..59d2e77 100644
--- a/src/arena.c
+++ b/src/arena.c
@@ -26,7 +26,7 @@ void arena_init(Arena *arena, const ArenaParams *params)
 {
     Assert(params->size > MemoryBlock_Header_Size);
     Assert(params->size < (U32_Max -  platform_page_size())); // Reserving last piece so our math doesn't overflow
-    Assert(IsPow2(params->commit_size));
+    Assert(params->commit_size > 0);
 
     MemoryBlock *block = memoryblock_allocate(params->size, params->commit_size);
     ASAN_UNPOISON_MEMORY_REGION(block, MemoryBlock_Header_Size);