diff --git a/src/basic/escape.c b/src/basic/escape.c
index 2e605b2ebe2..6734fba1f30 100644
--- a/src/basic/escape.c
+++ b/src/basic/escape.c
@@ -18,6 +18,8 @@
 int cescape_char(char c, char *buf) {
         char *buf_old = buf;
 
+        /* Needs space for 4 characters in the buffer */
+
         switch (c) {
 
                 case '\a':