diff --git a/modules/desktop.c b/modules/desktop.c
index ca36d35..7c1c7ce 100644
--- a/modules/desktop.c
+++ b/modules/desktop.c
@@ -1,3 +1,9 @@
+/* DESKTOP - desktop environment / window manager / compositor module for modfetch
+ *
+ * author: jacekpoz
+ * 09 Feb 2024
+ */
+
 #include "../mod.h"
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/modules/os.c b/modules/os.c
index 066cf5d..b15a2ad 100644
--- a/modules/os.c
+++ b/modules/os.c
@@ -1,3 +1,9 @@
+/* OS - operating system module for modfetch
+ *
+ * author: jacekpoz
+ * 09 Feb 2024
+ */
+
 #include "../mod.h"
 #include <stdio.h>
 #include <stdlib.h>