diff --git a/plugins/statiegeld b/plugins/statiegeld
index e1716ef..833714e 100644
--- a/plugins/statiegeld
+++ b/plugins/statiegeld
@@ -126,7 +126,7 @@ sub hook_input { # args via @_ for mutable alias
 	$S or return;
 
 	# Extra newline before new "Scan products for ..." line.
-	print "\n" if $input eq "" and $split_input; 
+	print "\n" if defined $input and $input eq "" and $split_input; 
 
 	# Hijack 'help' command so it never reaches the 'help' plugin.
 	if ($split_input and $input eq "help") {
diff --git a/revbank b/revbank
index 4fdbb7a..4c58376 100755
--- a/revbank
+++ b/revbank
@@ -18,7 +18,7 @@ use RevBank::Messages;
 use RevBank::Cart;
 use RevBank::Prompt;
 
-our $VERSION = "5.1.2";
+our $VERSION = "5.1.3";
 our %HELP1 = (
     "abort" => "Abort the current transaction",
 );