diff --git a/zone/bot_commands/bot_spelltypes.cpp b/zone/bot_commands/bot_spelltypes.cpp
index 204778a1b..2f3faf8ac 100644
--- a/zone/bot_commands/bot_spelltypes.cpp
+++ b/zone/bot_commands/bot_spelltypes.cpp
@@ -2,10 +2,20 @@
 
 void bot_command_spelltype_ids(Client* c, const Seperator* sep)
 {
+	// Unique marker to prevent MSVC's Identical COMDAT Folding (/OPT:ICF)
+	// from merging this function with bot_command_spelltype_names, which
+	// would cause the alias detection in bot_command_add() to fail.
+	static volatile int spelltype_ids_marker = 0;
+	(void)spelltype_ids_marker;
 	SendSpellTypeWindow(c, sep);
 }
 
 void bot_command_spelltype_names(Client* c, const Seperator* sep)
 {
+	// Unique marker to prevent MSVC's Identical COMDAT Folding (/OPT:ICF)
+	// from merging this function with bot_command_spelltype_ids, which
+	// would cause the alias detection in bot_command_add() to fail.
+	static volatile int spelltype_names_marker = 0;
+	(void)spelltype_names_marker;
 	SendSpellTypeWindow(c, sep);
 }