diff --git a/docs/reference/gio/meson.build b/docs/reference/gio/meson.build
index 4bb79cf62..060cf0708 100644
--- a/docs/reference/gio/meson.build
+++ b/docs/reference/gio/meson.build
@@ -8,7 +8,9 @@ if get_option('man')
       output: page + '.1',
       command: xsltproc_command,
       install: true,
-      install_dir: man1_dir)
+      install_dir: man1_dir,
+      install_tag: 'doc',
+    )
   endforeach
 endif
 
diff --git a/docs/reference/glib/meson.build b/docs/reference/glib/meson.build
index 303404cf6..f013a5469 100644
--- a/docs/reference/glib/meson.build
+++ b/docs/reference/glib/meson.build
@@ -7,7 +7,9 @@ if get_option('man')
       output: page + '.1',
       command: xsltproc_command,
       install: true,
-      install_dir: man1_dir)
+      install_dir: man1_dir,
+      install_tag: 'doc',
+    )
   endforeach
 endif
 
diff --git a/docs/reference/gobject/meson.build b/docs/reference/gobject/meson.build
index 67061f99c..4ceb2db23 100644
--- a/docs/reference/gobject/meson.build
+++ b/docs/reference/gobject/meson.build
@@ -6,7 +6,9 @@ if get_option('man')
       output: page + '.1',
       command: xsltproc_command,
       install: true,
-      install_dir: man1_dir)
+      install_dir: man1_dir,
+      install_tag: 'doc',
+    )
   endforeach
 endif