diff --git a/functions/zlib.xml b/functions/zlib.xml
index db6079b273..08e7b57e37 100644
--- a/functions/zlib.xml
+++ b/functions/zlib.xml
@@ -628,7 +628,7 @@ gzclose ($zd);
     <title>Description</title>
     <funcsynopsis>
      <funcprototype>
-      <funcdef>string <function>gzcompress</function></funcdef>
+      <funcdef>string <function>gzuncompress</function></funcdef>
       <paramdef>string <parameter>data</parameter></paramdef>
       <paramdef>int 
        <parameter><optional>length</optional></parameter>