diff --git a/doc/ansi_packages.xml b/doc/ansi_packages.xml
index f4edc5182..537d9af14 100644
--- a/doc/ansi_packages.xml
+++ b/doc/ansi_packages.xml
@@ -43,6 +43,12 @@
      <entry>&ECL; core</entry>
      <entry>Functions and variables internal to the implementation. Never to be used.</entry>
     </row>
+    <row>
+      <entry><package>FFI</package></entry>
+      <entry><package></package></entry>
+      <entry><package>ECL core</package></entry>
+      <entry>Foreign function interface</entry>
+    </row>
     <row>
      <entry><package>CMP</package></entry>
      <entry><package>C</package></entry>
@@ -90,4 +96,4 @@
  <xi:include href="ref_c_packages.xml" xpointer="ansi.packages.c-dict" xmlns:xi="http://www.w3.org/2001/XInclude"/>
 
 </chapter>
-</book>
\ No newline at end of file
+</book>