diff --git a/editor/plugins/visual_shader_editor_plugin.cpp b/editor/plugins/visual_shader_editor_plugin.cpp
index df6775a3ee2..85de0cd46ae 100644
--- a/editor/plugins/visual_shader_editor_plugin.cpp
+++ b/editor/plugins/visual_shader_editor_plugin.cpp
@@ -517,7 +517,6 @@ void VisualShaderEditor::_connection_request(const String &p_from, int p_from_in
 	int to = p_to.to_int();
 
 	if (!visual_shader->can_connect_nodes(type, from, p_from_index, to, p_to_index)) {
-		EditorNode::get_singleton()->show_warning(TTR("Unable to connect, port may be in use or connection may be invalid."));
 		return;
 	}
 
diff --git a/scene/resources/visual_shader.cpp b/scene/resources/visual_shader.cpp
index 4e5909eb2eb..9da2fd27ffb 100644
--- a/scene/resources/visual_shader.cpp
+++ b/scene/resources/visual_shader.cpp
@@ -240,6 +240,9 @@ bool VisualShader::can_connect_nodes(Type p_type, int p_from_node, int p_from_po
 	if (!g->nodes.has(p_from_node))
 		return false;
 
+	if (p_from_node == p_to_node)
+		return false;
+
 	if (p_from_port < 0 || p_from_port >= g->nodes[p_from_node].node->get_output_port_count())
 		return false;