diff --git a/src/ai/ai_info.cpp b/src/ai/ai_info.cpp
--- a/src/ai/ai_info.cpp
+++ b/src/ai/ai_info.cpp
@@ -29,7 +29,7 @@ static bool CheckAPIVersion(const char *
 	return strcmp(api_version, "0.7") == 0 || strcmp(api_version, "1.0") == 0 || strcmp(api_version, "1.1") == 0 ||
 			strcmp(api_version, "1.2") == 0 || strcmp(api_version, "1.3") == 0 || strcmp(api_version, "1.4") == 0 ||
 			strcmp(api_version, "1.5") == 0 || strcmp(api_version, "1.6") == 0 || strcmp(api_version, "1.7") == 0 ||
-			strcmp(api_version, "1.8") == 0;
+			strcmp(api_version, "1.8") == 0 || strcmp(api_version, "1.9") == 0;
 }
 
 #if defined(WIN32)