diff --git a/site/src/other.rs b/site/src/other.rs
index 6ec2f6e18..3afc0a4e8 100644
--- a/site/src/other.rs
+++ b/site/src/other.rs
@@ -554,6 +554,7 @@ pub fn Experimental() -> impl IntoView {
                 subscript(Rows, "Operate on -N-rank rows", "# Experimental!\n≡₂□ °△2_3_4"),
                 subscript(Each, "Operate on N-rank rows", "# Experimental!\n∵₁□ °△2_3_4"),
                 subscript(Repeat, "Repetition count", "# Experimental!\n⍥₅(⊂⟜/+) [1 2]"),
+                subscript(Tuples, "Tuple size", "# Experimental!\n⧅₂< ⇡4"),
             ] }
         </table>
 
diff --git a/src/compile/mod.rs b/src/compile/mod.rs
index afc874f44..b489e7ffe 100644
--- a/src/compile/mod.rs
+++ b/src/compile/mod.rs
@@ -2066,7 +2066,11 @@ code:
                     _ => {
                         if !matches!(
                             prim,
-                            Primitive::Both | Primitive::Repeat | Primitive::Rows | Primitive::Each
+                            Primitive::Both
+                                | Primitive::Repeat
+                                | Primitive::Rows
+                                | Primitive::Each
+                                | Primitive::Tuples
                         ) {
                             self.add_error(
                                 span,
diff --git a/src/compile/modifier.rs b/src/compile/modifier.rs
index d672e6252..57d4c56c0 100644
--- a/src/compile/modifier.rs
+++ b/src/compile/modifier.rs
@@ -511,6 +511,7 @@ impl Compiler {
                         Instr::ImplPrim(ImplPrimitive::UndoRerank, span)
                     ];
                 }
+                Primitive::Tuples => before = eco_vec![Instr::push(n)],
                 _ => {}
             }
         }