diff --git a/indra/newview/llfloaterpreference.cpp b/indra/newview/llfloaterpreference.cpp
index 577b18c03d..bd3c0ad4f4 100644
--- a/indra/newview/llfloaterpreference.cpp
+++ b/indra/newview/llfloaterpreference.cpp
@@ -783,6 +783,12 @@ BOOL LLFloaterPreference::postBuild()
 #endif
 	// </FS:Ansariel>
 
+	// <FS:Ansariel> FIRE-20416: Option only available on Windows
+#ifndef LL_WINDOWS
+	childSetEnabled("FSEnableAutomaticUIScaling", FALSE);
+#endif
+	// </FS:Ansariel>
+
 	return TRUE;
 }