diff --git a/indra/newview/llenvironment.cpp b/indra/newview/llenvironment.cpp
index d88f0f9847ee1ed8151b43f30067f46956f1e17e..8e8d396c957ca5ceeb6d62c21f4f03c25877a68c 100644
--- a/indra/newview/llenvironment.cpp
+++ b/indra/newview/llenvironment.cpp
@@ -812,7 +812,7 @@ const F64Seconds LLEnvironment::TRANSITION_SLOW(10.0f);
 const F64Seconds LLEnvironment::TRANSITION_ALTITUDE(5.0f);
 
 const LLUUID LLEnvironment::KNOWN_SKY_SUNRISE("01e41537-ff51-2f1f-8ef7-17e4df760bfb");
-const LLUUID LLEnvironment::KNOWN_SKY_MIDDAY("6c83e853-e7f8-cad7-8ee6-5f31c453721c");
+const LLUUID LLEnvironment::KNOWN_SKY_MIDDAY("81d4c85e-6868-dfd0-1a8a-e1838262be4b");
 const LLUUID LLEnvironment::KNOWN_SKY_SUNSET("084e26cd-a900-28e8-08d0-64a9de5c15e2");
 const LLUUID LLEnvironment::KNOWN_SKY_MIDNIGHT("8a01b97a-cb20-c1ea-ac63-f7ea84ad0090");