diff --git a/mvwrap/mvwrap b/mvwrap/mvwrap
index dbd5d68..4cf4182 100755
--- a/mvwrap/mvwrap
+++ b/mvwrap/mvwrap
@@ -190,7 +190,11 @@ sub which_doubles {
 	foreach (keys %selector) {
 		if ( scalar(@{$selector{$_}}) > 1 ) {
 			print "Doubles detected:\n";
-			map {print "$source[$_] -> $target[$_]\n";} @{$selector{$_}};
+			if (@pattern) {		# non-interactief
+				map {print "$source[$_] -> $target[$_]\n";} @{$selector{$_}};
+			} else {		# interactief
+				map {print "[line: $_] $source[$_] -> $target[$_]\n";} @{$selector{$_}};
+			}
 		}
 	}
 }