diff --git a/src/core/probably.scala b/src/core/probably.scala
index c0b5955..11d5c29 100644
--- a/src/core/probably.scala
+++ b/src/core/probably.scala
@@ -53,9 +53,9 @@ case class TestId(name: Text, suite: Maybe[TestSuite], codepoint: Codepoint):
   val timestamp: Long = System.currentTimeMillis
   import textWidthCalculation.uniform
   lazy val id: Text = (suite.hashCode ^ name.hashCode).hex.pad(6, Rtl, '0').take(6, Rtl)
-  lazy val ids: List[Text] =  id :: suite.mm(_.id.ids).or(Nil)
+  lazy val ids: List[Text] =  id :: suite.let(_.id.ids).or(Nil)
   def apply[T](ctx: TestContext ?=> T): Test[T] = Test[T](this, ctx(using _))
-  def depth: Int = suite.mm(_.id.depth).or(0) + 1
+  def depth: Int = suite.let(_.id.depth).or(0) + 1
 
 class TestSuite(val name: Text, val parent: Maybe[TestSuite] = Unset)(using codepoint: Codepoint):
   override def equals(that: Any): Boolean = that.matchable(using Unsafe) match
diff --git a/src/core/report.scala b/src/core/report.scala
index 76966f0..5885ecb 100644
--- a/src/core/report.scala
+++ b/src/core/report.scala
@@ -233,7 +233,7 @@ class TestReport(using Environment):
     
   case class Summary(status: Status, id: TestId, count: Int, min: Long, max: Long, avg: Long):
     def indentedName: Output =
-      val depth = id.suite.mm(_.id.depth).or(0) + 1
+      val depth = id.suite.let(_.id.depth).or(0) + 1
       
       val title =
         if status == Status.Suite then e"${colors.Silver}($Bold(${id.name}))"
@@ -384,7 +384,7 @@ class TestReport(using Environment):
     
     benches(lines).groupBy(_.test.suite).foreach: (suite, benchmarks) =>
       val ribbon = Ribbon(colors.DarkGreen.srgb, colors.MediumSeaGreen.srgb, colors.PaleGreen.srgb)
-      Out.println(ribbon.fill(e"${suite.mm(_.id.id).or(t"")}", e"Benchmarks", e"${suite.mm(_.name).or(t"")}"))
+      Out.println(ribbon.fill(e"${suite.let(_.id.id).or(t"")}", e"Benchmarks", e"${suite.let(_.name).or(t"")}"))
       
       val comparisons: List[ReportLine.Bench] =
         benchmarks.filter(!_.benchmark.baseline.unset).to(List)