--- a/src/eric7/Testing/TestingWidget.py	Sun Dec 31 13:56:09 2023 +0100
+++ b/src/eric7/Testing/TestingWidget.py	Sun Dec 31 14:11:11 2023 +0100
@@ -1470,7 +1470,10 @@
                 self.tr(
                     "<p>There was an error while discovering tests in <b>{0}</b>.</p>"
                     "<p>{1}</p>"
-                ).format("<br/>".join(error.splitlines())),
+                ).format(
+                    self.discoveryPicker.currentText(),
+                    "<br/>".join(error.splitlines()),
+                ),
             )
 
     def __testDiscoveryProcessFinished(self, results, output):  # noqa: U100