diff --git a/indra/llmessage/llavatarnamecache.cpp b/indra/llmessage/llavatarnamecache.cpp
index 579dd2782c..767001b633 100644
--- a/indra/llmessage/llavatarnamecache.cpp
+++ b/indra/llmessage/llavatarnamecache.cpp
@@ -38,7 +38,6 @@
 
 #include <map>
 #include <set>
-#include <unistd.h>
 
 namespace LLAvatarNameCache
 {