diff --git a/core/object/script_language.h b/core/object/script_language.h
index 72586780aee..ddd884a4f35 100644
--- a/core/object/script_language.h
+++ b/core/object/script_language.h
@@ -316,7 +316,7 @@ public:
 	virtual bool has_named_classes() const = 0;
 	virtual bool supports_builtin_mode() const = 0;
 	virtual bool supports_documentation() const { return false; }
-	virtual bool can_inherit_from_file() { return false; }
+	virtual bool can_inherit_from_file() const { return false; }
 	virtual int find_function(const String &p_function, const String &p_code) const = 0;
 	virtual String make_function(const String &p_class, const String &p_name, const PackedStringArray &p_args) const = 0;
 	virtual Error open_in_external_editor(const Ref<Script> &p_script, int p_line, int p_col) { return ERR_UNAVAILABLE; }
diff --git a/modules/gdnative/pluginscript/pluginscript_language.cpp b/modules/gdnative/pluginscript/pluginscript_language.cpp
index 6bde373c08c..a2118782d68 100644
--- a/modules/gdnative/pluginscript/pluginscript_language.cpp
+++ b/modules/gdnative/pluginscript/pluginscript_language.cpp
@@ -142,7 +142,7 @@ bool PluginScriptLanguage::supports_builtin_mode() const {
 	return _desc.supports_builtin_mode;
 }
 
-bool PluginScriptLanguage::can_inherit_from_file() {
+bool PluginScriptLanguage::can_inherit_from_file() const {
 	return _desc.can_inherit_from_file;
 }
 
diff --git a/modules/gdnative/pluginscript/pluginscript_language.h b/modules/gdnative/pluginscript/pluginscript_language.h
index feccef3e811..5e765498220 100644
--- a/modules/gdnative/pluginscript/pluginscript_language.h
+++ b/modules/gdnative/pluginscript/pluginscript_language.h
@@ -78,7 +78,7 @@ public:
 	virtual Script *create_script() const;
 	virtual bool has_named_classes() const;
 	virtual bool supports_builtin_mode() const;
-	virtual bool can_inherit_from_file();
+	virtual bool can_inherit_from_file() const;
 	virtual int find_function(const String &p_function, const String &p_code) const;
 	virtual String make_function(const String &p_class, const String &p_name, const PackedStringArray &p_args) const;
 	virtual Error complete_code(const String &p_code, const String &p_path, Object *p_owner, List<ScriptCodeCompletionOption> *r_options, bool &r_force, String &r_call_hint);
diff --git a/modules/gdscript/gdscript.h b/modules/gdscript/gdscript.h
index 3eb260f95f8..f949d266648 100644
--- a/modules/gdscript/gdscript.h
+++ b/modules/gdscript/gdscript.h
@@ -471,7 +471,7 @@ public:
 	virtual bool has_named_classes() const;
 	virtual bool supports_builtin_mode() const;
 	virtual bool supports_documentation() const;
-	virtual bool can_inherit_from_file() { return true; }
+	virtual bool can_inherit_from_file() const { return true; }
 	virtual int find_function(const String &p_function, const String &p_code) const;
 	virtual String make_function(const String &p_class, const String &p_name, const PackedStringArray &p_args) const;
 	virtual Error complete_code(const String &p_code, const String &p_path, Object *p_owner, List<ScriptCodeCompletionOption> *r_options, bool &r_forced, String &r_call_hint);