diff --git a/data/cdata/ui_scripts/MainMenu/__init__.lua b/data/cdata/ui_scripts/MainMenu/__init__.lua
index edd94a68..01a7841a 100644
--- a/data/cdata/ui_scripts/MainMenu/__init__.lua
+++ b/data/cdata/ui_scripts/MainMenu/__init__.lua
@@ -1,3 +1,7 @@
+if not Engine.InFrontend() then
+    return
+end
+
 require("CampaignMenuButtons")
 require("CPMainMenu")
 require("CPMainMenuButtons")
diff --git a/data/cdata/ui_scripts/Mods/__init__.lua b/data/cdata/ui_scripts/Mods/__init__.lua
index 8fa17032..a6cb8dd4 100644
--- a/data/cdata/ui_scripts/Mods/__init__.lua
+++ b/data/cdata/ui_scripts/Mods/__init__.lua
@@ -1,6 +1,7 @@
+if not Engine.InFrontend() then
+    return
+end
+
 require("ModSelectButton")
 require("ModSelectMenu")
-
-if (Engine.InFrontend()) then
-    require("ModDownload")
-end
+require("ModDownload")
diff --git a/data/cdata/ui_scripts/SystemLinkMenu/__init__.lua b/data/cdata/ui_scripts/SystemLinkMenu/__init__.lua
index 52cb5df6..81b02e80 100644
--- a/data/cdata/ui_scripts/SystemLinkMenu/__init__.lua
+++ b/data/cdata/ui_scripts/SystemLinkMenu/__init__.lua
@@ -1,2 +1,6 @@
+if not Engine.InFrontend() then
+    return
+end
+
 require("ServerButtons")
 require("SysLinkBrowser")