diff --git a/sds.c b/sds.c
index 02fb443..0af9c67 100644
--- a/sds.c
+++ b/sds.c
@@ -386,11 +386,11 @@ sds sdscatrepr(sds s, char *p, size_t len) {
         case '"':
             s = sdscatprintf(s,"\\%c",*p);
             break;
-        case '\n': s = sdscatlen(s,"\\n",1); break;
-        case '\r': s = sdscatlen(s,"\\r",1); break;
-        case '\t': s = sdscatlen(s,"\\t",1); break;
-        case '\a': s = sdscatlen(s,"\\a",1); break;
-        case '\b': s = sdscatlen(s,"\\b",1); break;
+        case '\n': s = sdscatlen(s,"\\n",2); break;
+        case '\r': s = sdscatlen(s,"\\r",2); break;
+        case '\t': s = sdscatlen(s,"\\t",2); break;
+        case '\a': s = sdscatlen(s,"\\a",2); break;
+        case '\b': s = sdscatlen(s,"\\b",2); break;
         default:
             if (isprint(*p))
                 s = sdscatprintf(s,"%c",*p);