diff --git a/src/ai/api/ai_sign.hpp.sq b/src/ai/api/ai_sign.hpp.sq
--- a/src/ai/api/ai_sign.hpp.sq
+++ b/src/ai/api/ai_sign.hpp.sq
@@ -28,13 +28,13 @@ void SQAISign_Register(Squirrel *engine)
 
 	AIError::RegisterErrorMapString(AISign::ERR_SIGN_TOO_MANY_SIGNS, "ERR_SIGN_TOO_MANY_SIGNS");
 
-	SQAISign.DefSQStaticMethod(engine, &AISign::GetMaxSignID, "GetMaxSignID", 1, "?");
-	SQAISign.DefSQStaticMethod(engine, &AISign::IsValidSign,  "IsValidSign",  2, "?i");
-	SQAISign.DefSQStaticMethod(engine, &AISign::SetName,      "SetName",      3, "?is");
-	SQAISign.DefSQStaticMethod(engine, &AISign::GetName,      "GetName",      2, "?i");
-	SQAISign.DefSQStaticMethod(engine, &AISign::GetLocation,  "GetLocation",  2, "?i");
-	SQAISign.DefSQStaticMethod(engine, &AISign::BuildSign,    "BuildSign",    3, "?is");
-	SQAISign.DefSQStaticMethod(engine, &AISign::RemoveSign,   "RemoveSign",   2, "?i");
+	SQAISign.DefSQStaticMethod(engine, &AISign::GetMaxSignID, "GetMaxSignID", 1, ".");
+	SQAISign.DefSQStaticMethod(engine, &AISign::IsValidSign,  "IsValidSign",  2, ".i");
+	SQAISign.DefSQStaticMethod(engine, &AISign::SetName,      "SetName",      3, ".is");
+	SQAISign.DefSQStaticMethod(engine, &AISign::GetName,      "GetName",      2, ".i");
+	SQAISign.DefSQStaticMethod(engine, &AISign::GetLocation,  "GetLocation",  2, ".i");
+	SQAISign.DefSQStaticMethod(engine, &AISign::BuildSign,    "BuildSign",    3, ".is");
+	SQAISign.DefSQStaticMethod(engine, &AISign::RemoveSign,   "RemoveSign",   2, ".i");
 
 	SQAISign.PostRegister(engine);
 }