diff --git a/scratchpad/dag.c b/scratchpad/dag.c
index e9218e3..5f8870d 100644
--- a/scratchpad/dag.c
+++ b/scratchpad/dag.c
@@ -145,6 +145,8 @@ wp_intern b8         prGraphEdgeExists(const PrGraph *graph, u64 from_idx, u64 t
 wp_intern u64        prGraphVertexCount(const PrGraph *graph);
 wp_intern WpU64Array prGraphTopologicalSort(const PrGraph *graph, const WpAllocator *allocator);
 
+wp_intern void _unlinkForward(PrGraph *graph, u64 from_idx, PrGraphEdge *edge);
+wp_intern void _unlinkBackward(PrGraph *graph, u64 to_idx, PrGraphEdge *edge);
 /* ---------------------------------------------------------------------------
  * PrNodeManager implementation
  * -------------------------------------------------------------------------*/