diff --git a/indra/newview/llfloaterimcontainer.cpp b/indra/newview/llfloaterimcontainer.cpp
index 333765f99f28ba7c56a4f01c6ac6889e8722f280..3cfa1133df2056cdfda3e4e60677e08f635a7707 100644
--- a/indra/newview/llfloaterimcontainer.cpp
+++ b/indra/newview/llfloaterimcontainer.cpp
@@ -2276,6 +2276,7 @@ BOOL LLFloaterIMContainer::isFrontmost()
 // This is intentional so it doesn't confuse the user. onClickCloseBtn() closes the whole floater.
 void LLFloaterIMContainer::onClickCloseBtn(bool app_quitting/* = false*/)
 {
+	gSavedPerAccountSettings.setS32("ConversationsListPaneWidth", mConversationsPane->getRect().getWidth());
 	LLMultiFloater::closeFloater(app_quitting);
 }