diff --git a/dex/src/critbit.rs b/dex/src/critbit.rs
index 6dfdcb2c..ed6d10ed 100644
--- a/dex/src/critbit.rs
+++ b/dex/src/critbit.rs
@@ -492,7 +492,7 @@ pub enum SlabTreeError {
 }
 
 impl Slab {
-    fn root(&self) -> Option<NodeHandle> {
+    pub fn root(&self) -> Option<NodeHandle> {
         if self.header().leaf_count == 0 {
             return None;
         }