diff --git a/Items.md b/Items.md
index 5a21fad..468a1f3 100644
--- a/Items.md
+++ b/Items.md
@@ -72,7 +72,7 @@ Hard Disk Drive
 ![HDD Tier 2](http://i.imgur.com/VotNUmU.png)
 ![HDD Tier 3](http://i.imgur.com/biISDTj.png)
 
-Hard disk drives (HDDs) come in three tiers, with increasing storage capacity (each tier's capacity is configurable). They can store more data than a simple floppy, but are also more expensive to craft. They can also only be installed in [[computer cases|Blocks#basic-case]] and servers. They can *not* be installed in robots.
+Hard disk drives (HDDs) come in three tiers, with increasing storage capacity (each tier's capacity is configurable). They can store more data than a simple floppy, but are also more expensive to craft. They can also only be installed in [[computer cases|Blocks#basic-case]] and servers. They can *only* be installed in robots during the assembly phase. (Prior to 1.3: They can *not* be installed in robots.)
 
 Memory
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