diff --git a/packages/zmarkdown/common.js b/packages/zmarkdown/common.js
index b252d4a6d..5b625ba73 100644
--- a/packages/zmarkdown/common.js
+++ b/packages/zmarkdown/common.js
@@ -33,10 +33,15 @@ module.exports = (
     parser.use(processor, processorConfig)
   }
 
+  // Regenerate footnotes postfix on extracts
+  const doRegenerate = (processor === 'html' && processorConfig._regenerateFootnotePostfix)
+  const regenerator = processorConfig._regenerateFootnotePostfix
+
   return (input, cb) => {
     if (typeof cb !== 'function') {
       return new Promise((resolve, reject) =>
         parser.process(input, (err, vfile) => {
+          if (doRegenerate) regenerator()
           if (err) return reject(err)
 
           resolve(vfile)
@@ -44,6 +49,7 @@ module.exports = (
     }
 
     parser.process(input, (err, vfile) => {
+      if (doRegenerate) regenerator()
       if (err) return cb(err)
 
       cb(null, vfile)
diff --git a/packages/zmarkdown/config/html/index.js b/packages/zmarkdown/config/html/index.js
index 7d16e6330..f1d451012 100644
--- a/packages/zmarkdown/config/html/index.js
+++ b/packages/zmarkdown/config/html/index.js
@@ -1,5 +1,7 @@
 const shortid = require('shortid')
 
+let currentFootnotePostfix = shortid.generate()
+
 module.exports = {
   autolinkHeadings: {
     behaviour: 'append',
@@ -22,7 +24,11 @@ module.exports = {
 
   sanitize: require('../sanitize'),
 
-  postfixFootnotes: (agg) => `${agg}-${shortid.generate()}`,
+  postfixFootnotes: (agg) => `${agg}-${currentFootnotePostfix}`,
+
+  _regenerateFootnotePostfix: () => {
+    currentFootnotePostfix = shortid.generate()
+  },
 
   postProcessors: {
     iframeWrappers:   require('./iframe-wrappers'),