diff --git a/disease/plague.arc b/disease/plague.arc
index afdbb4dc4..e60f07580 100644
--- a/disease/plague.arc
+++ b/disease/plague.arc
@@ -25,6 +25,6 @@ sp 1
 msg
 You have aches and fever, and you feel nauseous.
 endmsg
-race human,humanoid,troll,animal,insect
+race human,goblin,giant,troll,animal,insect
 level 15
 end
diff --git a/disease/smallpox.arc b/disease/smallpox.arc
index f6c331a7b..f1ae97495 100644
--- a/disease/smallpox.arc
+++ b/disease/smallpox.arc
@@ -23,6 +23,6 @@ sp 1
 msg
 You have a nasty rash all over you.  Are those pustules?
 endmsg
-race humanoid,human,troll,giant
+race goblin,human,troll,giant
 level 20
 end
diff --git a/disease/typhoid.arc b/disease/typhoid.arc
index d8e3710c9..b6a4371db 100644
--- a/disease/typhoid.arc
+++ b/disease/typhoid.arc
@@ -23,6 +23,6 @@ sp 1
 msg
 You feel feverish.  Your muscles spasm oddly....  Breathing is difficult.
 endmsg
-race human,humanoid
+race human,goblin,giant
 level 12
 end