diff --git a/commands/mem.c b/commands/mem.c
index 568050d..23c703f 100644
--- a/commands/mem.c
+++ b/commands/mem.c
@@ -84,6 +84,9 @@
 		case 'l':
 			*mode = O_RWSIZE_4;
 			break;
+		case 'q':
+			*mode = O_RWSIZE_8;
+			break;
 		case 's':
 			*sourcefile = optarg;
 			break;