diff --git a/ascurl/ascurl.cpp b/ascurl/ascurl.cpp
index 309d248..9575bd8 100644
--- a/ascurl/ascurl.cpp
+++ b/ascurl/ascurl.cpp
@@ -15,6 +15,9 @@
 #include "serverdef.h"
 #include "ascurl.h"
 
+//Missing symbol for linux
+mBOOL dlclose_handle_invalid;
+
 #define LIBCURL_FUNCTION_DEFINE(name) static decltype(name) * g_pfn_##name
 
 LIBCURL_FUNCTION_DEFINE(curl_easy_init);