diff --git a/src/ai/api/ai_town.cpp b/src/ai/api/ai_town.cpp
index 117c35f393..f7584c9791 100644
--- a/src/ai/api/ai_town.cpp
+++ b/src/ai/api/ai_town.cpp
@@ -14,11 +14,6 @@
 #include "../../station_base.h"
 #include "table/strings.h"
 
-/* static */ TownID AITown::GetMaxTownID()
-{
-	return ::GetMaxTownIndex();
-}
-
 /* static */ int32 AITown::GetTownCount()
 {
 	return ::GetNumTowns();
diff --git a/src/ai/api/ai_town.hpp b/src/ai/api/ai_town.hpp
index 02b806b4c5..c132beea30 100644
--- a/src/ai/api/ai_town.hpp
+++ b/src/ai/api/ai_town.hpp
@@ -96,13 +96,6 @@ public:
 		ROAD_LAYOUT_INVALID = -1, ///< The layout for invalid towns.
 	};
 
-	/**
-	 * Gets the maximum town index; there are no valid towns with a higher index.
-	 * @return The maximum town index.
-	 * @post Return value is always non-negative.
-	 */
-	static TownID GetMaxTownID();
-
 	/**
 	 * Gets the number of towns. This is different than GetMaxTownID()
 	 *   because of the way OpenTTD works internally.
diff --git a/src/ai/api/ai_town.hpp.sq b/src/ai/api/ai_town.hpp.sq
index d5fd67aee6..f31a22867c 100644
--- a/src/ai/api/ai_town.hpp.sq
+++ b/src/ai/api/ai_town.hpp.sq
@@ -49,7 +49,6 @@ void SQAITown_Register(Squirrel *engine) {
 	SQAITown.DefSQConst(engine, AITown::ROAD_LAYOUT_3x3,              "ROAD_LAYOUT_3x3");
 	SQAITown.DefSQConst(engine, AITown::ROAD_LAYOUT_INVALID,          "ROAD_LAYOUT_INVALID");
 
-	SQAITown.DefSQStaticMethod(engine, &AITown::GetMaxTownID,               "GetMaxTownID",               1, "?");
 	SQAITown.DefSQStaticMethod(engine, &AITown::GetTownCount,               "GetTownCount",               1, "?");
 	SQAITown.DefSQStaticMethod(engine, &AITown::IsValidTown,                "IsValidTown",                2, "?i");
 	SQAITown.DefSQStaticMethod(engine, &AITown::GetName,                    "GetName",                    2, "?i");