diff --git a/compiler/src/dotty/tools/dotc/reporting/messages.scala b/compiler/src/dotty/tools/dotc/reporting/messages.scala
index 16e0392764b6..d6d9bd8bc868 100644
--- a/compiler/src/dotty/tools/dotc/reporting/messages.scala
+++ b/compiler/src/dotty/tools/dotc/reporting/messages.scala
@@ -921,7 +921,7 @@ class MatchableWarning(tp: Type, pattern: Boolean)(using Context)
 extends TypeMsg(MatchableWarningID) {
   def msg(using Context) =
     val kind = if pattern then "pattern selector" else "value"
-    i"""${kind} should be an instance of Matchable,,
+    i"""${kind} should be an instance of Matchable,
        |but it has unmatchable type $tp instead"""
 
   def explain(using Context) =
diff --git a/tests/pos-with-compiler-cc/dotc/reporting/messages.scala b/tests/pos-with-compiler-cc/dotc/reporting/messages.scala
index 142ac63af0f3..cd5c5f67ff41 100644
--- a/tests/pos-with-compiler-cc/dotc/reporting/messages.scala
+++ b/tests/pos-with-compiler-cc/dotc/reporting/messages.scala
@@ -873,7 +873,7 @@ class MatchableWarning(tp: Type, pattern: Boolean)(using DetachedContext)
 extends TypeMsg(MatchableWarningID) {
   def msg(using Context) =
     val kind = if pattern then "pattern selector" else "value"
-    i"""${kind} should be an instance of Matchable,,
+    i"""${kind} should be an instance of Matchable,
        |but it has unmatchable type $tp instead"""
 
   def explain(using Context) =