diff --git a/akka-stream/src/main/mima-filters/2.5.13.backwards.excludes b/akka-stream/src/main/mima-filters/2.5.13.backwards.excludes
index ac4792762d..8b546c2ce3 100644
--- a/akka-stream/src/main/mima-filters/2.5.13.backwards.excludes
+++ b/akka-stream/src/main/mima-filters/2.5.13.backwards.excludes
@@ -9,4 +9,7 @@ ProblemFilters.exclude[DirectMissingMethodProblem]("akka.stream.impl.JsonObjectP
 ProblemFilters.exclude[IncompatibleResultTypeProblem]("akka.stream.impl.JsonObjectParser.Tab")
 ProblemFilters.exclude[IncompatibleResultTypeProblem]("akka.stream.impl.JsonObjectParser.Space")
 ProblemFilters.exclude[IncompatibleResultTypeProblem]("akka.stream.impl.JsonObjectParser.LineBreak2")
-ProblemFilters.exclude[IncompatibleResultTypeProblem]("akka.stream.impl.JsonObjectParser.LineBreak")
\ No newline at end of file
+ProblemFilters.exclude[IncompatibleResultTypeProblem]("akka.stream.impl.JsonObjectParser.LineBreak")
+
+# Merged impls of Sink.last / Sink.lastOption / Sink.takeLast
+ProblemFilters.exclude[MissingClassProblem]("akka.stream.impl.LastOptionStage")