diff --git a/general/genlib/pth.xml b/general/genlib/pth.xml
index 0bfb397e1b..c0d2d1926e 100644
--- a/general/genlib/pth.xml
+++ b/general/genlib/pth.xml
@@ -66,6 +66,13 @@
   <sect2 role="installation">
     <title>Installation of Pth</title>
 
+    <caution>
+      <para>Don't add the <option>--enable-pthread</option> parameter to the
+      <command>configure</command> command below else you will overwrite the
+      pthread library and interface header installed by the
+      <application>Glibc</application> package in LFS.</para>
+    </caution>
+
     <para>Install <application>Pth</application> by running the
     following commands:</para>