diff --git a/serialport.c b/serialport.c
index c2a1a0c..77d8b28 100644
--- a/serialport.c
+++ b/serialport.c
@@ -73,6 +73,17 @@ int sp_get_port_by_name(const char *portname, struct sp_port **port_ptr)
 	return SP_OK;
 }
 
+void sp_free_port(struct sp_port *port)
+{
+	if (!port)
+		return;
+
+	if (port->name)
+		free(port->name);
+
+	free(port);
+}
+
 static struct sp_port **sp_list_append(struct sp_port **list, const char *portname)
 {
 	void *tmp;
@@ -313,7 +324,7 @@ void sp_free_port_list(struct sp_port **list)
 {
 	unsigned int i;
 	for (i = 0; list[i]; i++)
-		free(list[i]);
+		sp_free_port(list[i]);
 	free(list);
 }
 
diff --git a/serialport.h b/serialport.h
index c7d4f7c..ac583e9 100644
--- a/serialport.h
+++ b/serialport.h
@@ -80,6 +80,7 @@ enum {
 };
 
 int sp_get_port_by_name(const char *portname, struct sp_port **port_ptr);
+void sp_free_port(struct sp_port *port);
 int sp_list_ports(struct sp_port ***list_ptr);
 void sp_free_port_list(struct sp_port **ports);
 int sp_open(struct sp_port *port, int flags);