--- a/RegressionTests__WebSocketTest.st	Mon Jan 27 17:31:28 2020 +0100
+++ b/RegressionTests__WebSocketTest.st	Mon Jan 27 18:07:10 2020 +0100
@@ -353,7 +353,7 @@
     dataArray := dataArrayOrData.
 
     (dataArrayOrData 
-        perform:#firstIfEmpty 
+        perform:#'firstIfEmpty:'
         with:nil 
         ifNotUnderstood:nil) isCollection ifFalse:[
             dataArray := Array with:dataArrayOrData.
@@ -367,7 +367,7 @@
     ^ timeDurationUsed
 
     "Created: / 22-01-2020 / 16:21:30 / Stefan Reise"
-    "Modified: / 27-01-2020 / 15:44:44 / Stefan Reise"
+    "Modified: / 27-01-2020 / 17:49:37 / Stefan Reise"
 ! !
 
 !WebSocketTest methodsFor:'queries'!