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-rw-r--r--docs/users_guide/glasgow_exts.xml6
1 files changed, 3 insertions, 3 deletions
diff --git a/docs/users_guide/glasgow_exts.xml b/docs/users_guide/glasgow_exts.xml
index 7872a88134..a35e5704e9 100644
--- a/docs/users_guide/glasgow_exts.xml
+++ b/docs/users_guide/glasgow_exts.xml
@@ -11571,7 +11571,7 @@ described in <ulink
url="http://www.seas.upenn.edu/~sweirich/papers/popl163af-weirich.pdf">Generative
type abstraction and type-level computation</ulink>, published at POPL 2011.</para>
-<sect2>
+<sect2 id="nominal-representational-and-phantom">
<title>Nominal, Representational, and Phantom</title>
<para>The goal of the roles system is to track when two types have the same
@@ -11628,7 +11628,7 @@ are unrelated.</para>
</sect2>
-<sect2>
+<sect2 id="role-inference">
<title>Role inference</title>
<para>
@@ -11682,7 +11682,7 @@ but role nominal for <literal>b</literal>.</para>
</sect2>
-<sect2>
+<sect2 id="role-annotations">
<title>Role annotations
<indexterm><primary>-XRoleAnnotations</primary></indexterm>
</title>