diff --git a/Cargo.toml b/Cargo.toml
index 3140c94..cf1efdd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,6 +18,7 @@ derive_more = { version = "1.0.0", features = ["from", "error", "display", "into
 rkyv = { version = "0.8.9", features = ["uuid-1"] }
 lockfree = "0.5.1"
 uuid = { version = "1.11.0", features = ["v4"] }
+ordered-float = "5.0.0"
 indexset = { version = "0.12.2", features = ["concurrent", "cdc", "multimap"] }
 # indexset = { path = "../indexset", version = "0.12.0", features = ["concurrent", "cdc", "multimap"] }
 # indexset = { git = "https://github.com/Handy-caT/indexset", branch = "multimap-range-fix", version = "0.12.0", features = ["concurrent", "cdc", "multimap"] }
diff --git a/src/util/sized.rs b/src/util/sized.rs
index 6e83324..a2ccab7 100644
--- a/src/util/sized.rs
+++ b/src/util/sized.rs
@@ -1,4 +1,5 @@
 use crate::link::{Link, LINK_LENGTH};
+use ordered_float::OrderedFloat;
 use rkyv::util::AlignedVec;
 use std::{mem, sync::Arc};
 use uuid::Uuid;
@@ -63,6 +64,15 @@ impl SizeMeasurable for Uuid {
     }
 }
 
+impl<T> SizeMeasurable for OrderedFloat<T>
+where
+    T: SizeMeasurable,
+{
+    fn aligned_size(&self) -> usize {
+        self.0.aligned_size()
+    }
+}
+
 impl SizeMeasurable for [u8; 32] {
     fn aligned_size(&self) -> usize {
         mem::size_of::<[u8; 32]>()