diff --git a/src/rstd/collections/pair.rs b/src/rstd/collections/pair.rs
index 4504118..5be8330 100644
--- a/src/rstd/collections/pair.rs
+++ b/src/rstd/collections/pair.rs
@@ -139,3 +139,28 @@ impl<A: AtomicBase, B: AtomicBase> AtomicBase for (A, B) {
 impl<A: ParseMode<Mode = InliningMode>, B: ParseMode> ParseMode for (A, B) {
     type Mode = B::Mode;
 }
+
+type PFImpl<'a, Ctx, FA, FB> = StaticPairFactory<
+    'a,
+    Ctx,
+    (
+        <FA as FactoryBase<'a, Ctx>>::Mtbl,
+        <FB as FactoryBase<'a, Ctx>>::Mtbl,
+    ),
+>;
+
+impl<'a, Ctx: Context<'a>, FA: InliningFactory<'a, Ctx>, FB: FactoryModeParse<'a, Ctx>>
+    FactoryModeParse<'a, Ctx> for (FA, FB)
+{
+    fn mdeserialize<I: InCtx<'a, Ctx>>(&self, inctx: I) -> ModeResultM<'a, Ctx, Self, I> {
+        PFImpl::<'a, Ctx, FA, FB>::mdeserialize_sp(self, inctx)
+    }
+
+    fn mextend(
+        &self,
+        mentionable: ExtensionSourceM<'a, Ctx, Self>,
+        tail: &[u8],
+    ) -> ExtensionResultM<'a, Ctx, Self> {
+        PFImpl::<'a, Ctx, FA, FB>::mextend_sp(self, mentionable, tail)
+    }
+}