diff --git a/scripts/disasm-gdb-remote.pl b/scripts/disasm-gdb-remote.pl
index 2725c6e..0742ea8 100755
--- a/scripts/disasm-gdb-remote.pl
+++ b/scripts/disasm-gdb-remote.pl
@@ -554,6 +554,7 @@
     if ($reg_num >= @$registers_aref)
     {
         printf("\tinvalid register index %d\n", $reg_num);
+        return;
     }
     
     my $reg_href = $$registers_aref[$reg_num];