diff --git a/compiler/hash-repr/src/write.rs b/compiler/hash-repr/src/write.rs
index a2ec96ee2..01e005c75 100644
--- a/compiler/hash-repr/src/write.rs
+++ b/compiler/hash-repr/src/write.rs
@@ -338,8 +338,10 @@ impl BoxRow {
             return;
         }
 
-        // Insert an empty box to fill in the missing gap.
-        if width - current_width > 2 {
+        // For singletons, insert an empty box to fill in the missing gap.
+        let singleton = self.contents.len() == 1;
+
+        if singleton && width - current_width > 2 {
             let empty_width = width - current_width - 1;
             self.widths.push(empty_width);
             self.contents.push(BoxContent::new_empty(empty_width));
diff --git a/tests/cases/typecheck/enums/discriminants/valid.hash b/tests/cases/typecheck/enums/discriminants/valid.hash
index 7579b4ccc..5fb1a473a 100644
--- a/tests/cases/typecheck/enums/discriminants/valid.hash
+++ b/tests/cases/typecheck/enums/discriminants/valid.hash
@@ -61,6 +61,10 @@ Variants := enum(
 #layout_of
 Empty := enum();
 
-
+#layout_of
+Boon := enum(
+    Foo(x: i32, y: i32),
+    Faz(z: f64),
+);
 
 main := () => {}
diff --git a/tests/cases/typecheck/enums/discriminants/valid.stdout b/tests/cases/typecheck/enums/discriminants/valid.stdout
index 365cc1b86..d2fb538bd 100644
--- a/tests/cases/typecheck/enums/discriminants/valid.stdout
+++ b/tests/cases/typecheck/enums/discriminants/valid.stdout
@@ -102,3 +102,20 @@ info: Layout of `!` (size=0b align=1b):
 │  align: 1b │
 └────────────┘
 
+info: Layout of `Boon` (size=16b align=8b):
+┌──────────────┬─────────────────────────┐
+│ 4b tag (u32) │                         │
+├──────────────┼────────────┬────────────┤
+│     Foo      │   x: i32   │   y: i32   │
+│              │            │            │
+│      0       │   size: 4b │   size: 4b │
+│              │ offset: 4b │ offset: 8b │
+│              │  align: 4b │  align: 4b │
+├──────────────┼────────┬───┴────────────┤
+│     Faz      │ 4b pad │     z: f64     │
+│              │        │                │
+│      1       │   ##   │     size: 8b   │
+│              │   ##   │   offset: 8b   │
+│              │   ##   │    align: 8b   │
+└──────────────┴────────┴────────────────┘
+