Page numbers always on outside in booklet

eisvogel.tex

@@ -712,9 +712,9 @@
   \lhead[$if(header-right)$$header-right$$else$$date$$endif$]{$if(header-left)$$header-left$$else$$title$$endif$}
   \chead[$if(header-center)$$header-center$$else$$endif$]{$if(header-center)$$header-center$$else$$endif$}
   \rhead[$if(header-left)$$header-left$$else$$title$$endif$]{$if(header-right)$$header-right$$else$$date$$endif$}
-  \lfoot[$if(footer-right)$$footer-right$$else$\thepage$endif$]{$if(footer-left)$$footer-left$$else$$for(author)$$author$$sep$, $endfor$$endif$}
+  \rfoot[$if(footer-right)$$footer-right$$else$\thepage$endif$]{$if(footer-left)$$footer-left$$else$$for(author)$$author$$sep$, $endfor$$endif$}
   \cfoot[$if(footer-center)$$footer-center$$else$$endif$]{$if(footer-center)$$footer-center$$else$$endif$}
-  \rfoot[$if(footer-left)$$footer-left$$else$$for(author)$$author$$sep$, $endfor$$endif$]{$if(footer-right)$$footer-right$$else$\thepage$endif$}
+  \lfoot[$if(footer-left)$$footer-left$$else$$for(author)$$author$$sep$, $endfor$$endif$]{$if(footer-right)$$footer-right$$else$\thepage$endif$}
   \renewcommand{\headrulewidth}{0.4pt}
   \renewcommand{\footrulewidth}{0.4pt}
 }

pandoc-metadata.yaml

@@ -15,6 +15,7 @@ toc-title: "Table of Contents"
 #
 # Options specific to Latex (PDF version)
 #
+book: true
 footer-left: "Hackerspace Gent"
 links-as-notes: yes
 # This is an inline yaml metadata code block that specifies custom headers and footers