diff --git a/binary-compat/test/src/test/scala/BinaryCompaTest.scala b/binary-compat/test/src/test/scala/BinaryCompaTest.scala
index 27ca81bb..d8dcdd85 100644
--- a/binary-compat/test/src/test/scala/BinaryCompaTest.scala
+++ b/binary-compat/test/src/test/scala/BinaryCompaTest.scala
@@ -26,13 +26,13 @@ class BinaryCompaTest {
     val unexpectedDescriptions =
       allProblems.iterator
         .map(_.description("new"))
-        .map{x => println(x); x}
+        // code improvement: it would be more standard to use a ProblemFilter here
         .filterNot(_ == "static method id(scala.collection.Iterable,scala.collection.generic.CanBuildFrom)scala.collection.Iterable in class org.example.Lib has a different signature in new version, where it is <A:Ljava/lang/Object;C::Lscala/collection/Iterable<Ljava/lang/Object;>;>(TC;Lscala/collection/generic/CanBuildFrom<Lscala/runtime/Nothing$;TA;TC;>;)TC; rather than <A:Ljava/lang/Object;C::Lscala/collection/Iterable<Ljava/lang/Object;>;>(TC;Lscala/collection/generic/CanBuildFrom<TC;TA;TC;>;)TC;")
         .filterNot(_ == "method id(scala.collection.Iterable,scala.collection.generic.CanBuildFrom)scala.collection.Iterable in object org.example.Lib has a different signature in new version, where it is <A:Ljava/lang/Object;C::Lscala/collection/Iterable<Ljava/lang/Object;>;>(TC;Lscala/collection/generic/CanBuildFrom<Lscala/runtime/Nothing$;TA;TC;>;)TC; rather than <A:Ljava/lang/Object;C::Lscala/collection/Iterable<Ljava/lang/Object;>;>(TC;Lscala/collection/generic/CanBuildFrom<TC;TA;TC;>;)TC;")
         .toList
     val msg =
       unexpectedDescriptions.mkString(
-        s"The following ${allProblems.size} problems were reported but not expected:\n  - ", "\n  - ", "\n")
+        s"The following ${unexpectedDescriptions.size} problems were reported but not expected:\n  - ", "\n  - ", "\n")
     Assert.assertEquals(msg, Nil, unexpectedDescriptions)
   }
 }