diff --git a/core/script_language.cpp b/core/script_language.cpp
index c088f3b99d8..f2822926e93 100644
--- a/core/script_language.cpp
+++ b/core/script_language.cpp
@@ -276,6 +276,14 @@ void ScriptServer::save_global_classes() {
 		gcarr.push_back(d);
 	}
 
+	Array old;
+	if (ProjectSettings::get_singleton()->has_setting("_global_script_classes")) {
+		old = ProjectSettings::get_singleton()->get("_global_script_classes");
+	}
+	if ((!old.empty() || gcarr.empty()) && gcarr.hash() == old.hash()) {
+		return;
+	}
+
 	if (gcarr.empty()) {
 		if (ProjectSettings::get_singleton()->has_setting("_global_script_classes")) {
 			ProjectSettings::get_singleton()->clear("_global_script_classes");
diff --git a/editor/editor_data.cpp b/editor/editor_data.cpp
index d0e6236f8bd..1caeb982349 100644
--- a/editor/editor_data.cpp
+++ b/editor/editor_data.cpp
@@ -986,6 +986,14 @@ void EditorData::script_class_save_icon_paths() {
 			d[E->get()] = _script_class_icon_paths[E->get()];
 	}
 
+	Dictionary old;
+	if (ProjectSettings::get_singleton()->has_setting("_global_script_class_icons")) {
+		old = ProjectSettings::get_singleton()->get("_global_script_class_icons");
+	}
+	if ((!old.empty() || d.empty()) && d.hash() == old.hash()) {
+		return;
+	}
+
 	if (d.empty()) {
 		if (ProjectSettings::get_singleton()->has_setting("_global_script_class_icons")) {
 			ProjectSettings::get_singleton()->clear("_global_script_class_icons");