diff --git a/visual_script.cpp b/visual_script.cpp
index 186e9e6..5b3b3a6 100644
--- a/visual_script.cpp
+++ b/visual_script.cpp
@@ -981,6 +981,10 @@ bool VisualScript::is_tool() const {
 	return false;
 }
 
+bool VisualScript::is_valid() const {
+	return true; //always valid
+}
+
 ScriptLanguage *VisualScript::get_language() const {
 
 	return VisualScriptLanguage::singleton;
diff --git a/visual_script.h b/visual_script.h
index bd66644..cdc9159 100644
--- a/visual_script.h
+++ b/visual_script.h
@@ -341,6 +341,7 @@ public:
 	virtual Error reload(bool p_keep_state = false);
 
 	virtual bool is_tool() const;
+	virtual bool is_valid() const;
 
 	virtual ScriptLanguage *get_language() const;