diff --git a/compiler/src/dotty/tools/dotc/parsing/Parsers.scala b/compiler/src/dotty/tools/dotc/parsing/Parsers.scala
index f8a9b71de119..9853107ca8fc 100644
--- a/compiler/src/dotty/tools/dotc/parsing/Parsers.scala
+++ b/compiler/src/dotty/tools/dotc/parsing/Parsers.scala
@@ -3188,7 +3188,7 @@ object Parsers {
                 |  * variable pattern, e.g. `case x: String =>`
                 |  * number literal pattern, e.g. `case 10.5: Double =>`
                 |are no longer supported. Remove the type ascription or move it to a separate variable pattern.""",
-            in.sourcePos(),
+            p.sourcePos,
             MigrationVersion.AscriptionAfterPattern)
         in.nextToken()
         ascription(p, location)
diff --git a/tests/neg/i15784.check b/tests/neg/i15784.check
index 7d015689950d..d8c9c193c7dc 100644
--- a/tests/neg/i15784.check
+++ b/tests/neg/i15784.check
@@ -10,17 +10,17 @@
   |                      Not found: A
   |
   | longer explanation available when compiling with `-explain`
--- Warning: tests/neg/i15784.scala:7:8 ---------------------------------------------------------------------------------
+-- Warning: tests/neg/i15784.scala:7:7 ---------------------------------------------------------------------------------
 7 |  case X: Int => X  // warn
-  |        ^
-  |        Type ascriptions after patterns other than:
-  |          * variable pattern, e.g. `case x: String =>`
-  |          * number literal pattern, e.g. `case 10.5: Double =>`
-  |        are no longer supported. Remove the type ascription or move it to a separate variable pattern.
--- Warning: tests/neg/i15784.scala:10:12 -------------------------------------------------------------------------------
+  |       ^
+  |       Type ascriptions after patterns other than:
+  |         * variable pattern, e.g. `case x: String =>`
+  |         * number literal pattern, e.g. `case 10.5: Double =>`
+  |       are no longer supported. Remove the type ascription or move it to a separate variable pattern.
+-- Warning: tests/neg/i15784.scala:10:7 --------------------------------------------------------------------------------
 10 |  case `Int`: Int => `Int` // warn
-   |            ^
-   |            Type ascriptions after patterns other than:
-   |              * variable pattern, e.g. `case x: String =>`
-   |              * number literal pattern, e.g. `case 10.5: Double =>`
-   |            are no longer supported. Remove the type ascription or move it to a separate variable pattern.
+   |       ^^^^^
+   |       Type ascriptions after patterns other than:
+   |         * variable pattern, e.g. `case x: String =>`
+   |         * number literal pattern, e.g. `case 10.5: Double =>`
+   |       are no longer supported. Remove the type ascription or move it to a separate variable pattern.
diff --git a/tests/neg/t5702-neg-bad-and-wild.check b/tests/neg/t5702-neg-bad-and-wild.check
index be77cd255a66..a70c6db1cef9 100644
--- a/tests/neg/t5702-neg-bad-and-wild.check
+++ b/tests/neg/t5702-neg-bad-and-wild.check
@@ -54,13 +54,6 @@
    |                    no pattern match extractor named * was found
    |
    | longer explanation available when compiling with `-explain`
--- Warning: tests/neg/t5702-neg-bad-and-wild.scala:13:22 ---------------------------------------------------------------
-13 |      case List(1, _*3:) =>  // error // error
-   |                      ^
-   |                  Type ascriptions after patterns other than:
-   |                    * variable pattern, e.g. `case x: String =>`
-   |                    * number literal pattern, e.g. `case 10.5: Double =>`
-   |                  are no longer supported. Remove the type ascription or move it to a separate variable pattern.
 -- Warning: tests/neg/t5702-neg-bad-and-wild.scala:22:20 ---------------------------------------------------------------
 22 |    val K(x @ _*) = k
    |                    ^