diff --git a/libmalcontent/app-filter-private.h b/libmalcontent/app-filter-private.h
index 8b2fefd..8772ebc 100644
--- a/libmalcontent/app-filter-private.h
+++ b/libmalcontent/app-filter-private.h
@@ -48,6 +48,7 @@ typedef enum
 
 struct _MctAppFilter
 {
+  /*< private >*/
   gint ref_count;
 
   uid_t user_id;
diff --git a/libmalcontent/meson.build b/libmalcontent/meson.build
index f68299c..2f36420 100644
--- a/libmalcontent/meson.build
+++ b/libmalcontent/meson.build
@@ -66,7 +66,7 @@ pkgconfig.generate(libmalcontent,
 )
 
 libmalcontent_gir = gnome.generate_gir(libmalcontent,
-  sources: libmalcontent_sources + libmalcontent_headers + libmalcontent_private_headers + enums,
+  sources: libmalcontent_sources + libmalcontent_headers + enums,
   nsversion: libmalcontent_api_version,
   namespace: 'Malcontent',
   symbol_prefix: 'mct_',
diff --git a/libmalcontent/session-limits-private.h b/libmalcontent/session-limits-private.h
index 88f6c84..11a2ac9 100644
--- a/libmalcontent/session-limits-private.h
+++ b/libmalcontent/session-limits-private.h
@@ -50,6 +50,7 @@ typedef enum
 
 struct _MctSessionLimits
 {
+  /*< private >*/
   gint ref_count;
 
   uid_t user_id;