diff --git a/core/mem/allocators.odin b/core/mem/allocators.odin
index 7ef094bc1..cc21b84ef 100644
--- a/core/mem/allocators.odin
+++ b/core/mem/allocators.odin
@@ -116,6 +116,8 @@ scratch_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
 
 	if scratch.data == nil {
 		DEFAULT_SCRATCH_BACKING_SIZE :: 1<<22;
+		assert(context.allocator.procedure != scratch_allocator_proc &&
+		       context.allocator.data != allocator_data);
 		scratch_allocator_init(scratch, make([]byte, 1<<22));
 	}
 
diff --git a/examples/demo/demo.odin b/examples/demo/demo.odin
index 1fce88ce9..af9e606cb 100644
--- a/examples/demo/demo.odin
+++ b/examples/demo/demo.odin
@@ -1836,4 +1836,3 @@ main :: proc() {
 		soa_struct_layout();
 	}
 }
-