diff --git a/docs/refguide.xml b/docs/refguide.xml
index 613efa93f..6bc274ae2 100644
--- a/docs/refguide.xml
+++ b/docs/refguide.xml
@@ -1564,7 +1564,7 @@ way.
qualifier. For example, the argument would scan UDP
ports 53,111,and 137, as well as the listed TCP ports. Note
- that to scan both UDP & TCP, you have to specify
+ that to scan both UDP and TCP, you have to specify
and at least one TCP scan type (such as
, , or
). If no protocol qualifier is given,