doxygen BUGFIX source file headers, file attribute
diff --git a/src/plugins_exts/metadata.c b/src/plugins_exts/metadata.c
index 726ecb9..ed7bc5b 100644
--- a/src/plugins_exts/metadata.c
+++ b/src/plugins_exts/metadata.c
@@ -1,5 +1,5 @@
 /**
- * @file plugins_exts_nacm.c
+ * @file metadata.c
  * @author Radek Krejci <rkrejci@cesnet.cz>
  * @brief libyang extension plugin - Metadata (RFC 7952)
  *