diff --git a/libsecret/secret-version.h.in b/libsecret/secret-version.h.in
index 6b777e9..4c89d7f 100644
--- a/libsecret/secret-version.h.in
+++ b/libsecret/secret-version.h.in
@@ -65,4 +65,4 @@
       SECRET_MINOR_VERSION == (minor) &&                \
       SECRET_MICRO_VERSION >= (micro)))
 
-#endif __SECRET_VERSION_H__
+#endif /* __SECRET_VERSION_H__ */