diff --git a/compiler/src/dotty/tools/dotc/transform/Splicing.scala b/compiler/src/dotty/tools/dotc/transform/Splicing.scala
index a9b97ebff407..6035f18474f2 100644
--- a/compiler/src/dotty/tools/dotc/transform/Splicing.scala
+++ b/compiler/src/dotty/tools/dotc/transform/Splicing.scala
@@ -294,7 +294,7 @@ class Splicing extends MacroTransform:
         reflect.asExpr(tree.tpe)(
           reflect.Assign(
             reflect.asTerm(capturedTerm(tree.lhs)),
-            reflect.asTerm(quoted(tree.rhs))
+            reflect.asTerm(quoted(transform(tree.rhs)))
           )
         )
       }
diff --git a/tests/pos-macros/i15213.scala b/tests/pos-macros/i15213.scala
new file mode 100644
index 000000000000..e06c259b64a9
--- /dev/null
+++ b/tests/pos-macros/i15213.scala
@@ -0,0 +1,9 @@
+import scala.quoted.*
+
+def map[T](arr: Expr[Array[T]], f: Expr[T] => Expr[Unit])(using Type[T], Quotes): Expr[Unit] = '{}
+
+def sum(arr: Expr[Array[Int]])(using Quotes): Expr[Int] = '{
+  var sum = 0
+  ${ map(arr, x => '{sum += $x}) }
+  sum
+}