diff --git a/content/docs/zkdocs/protocol-primitives/alt-shamir.md b/content/docs/zkdocs/protocol-primitives/alt-shamir.md
index 39ae877..61f3043 100644
--- a/content/docs/zkdocs/protocol-primitives/alt-shamir.md
+++ b/content/docs/zkdocs/protocol-primitives/alt-shamir.md
@@ -14,7 +14,7 @@ These alternative schemes are certainly harder to implement (and to review), and
 
 ### Transforming the Inputs Using a Nonzero Function
 
-Suppose we are working over $\z{p}$, where $p=2^{255}-19$. Consider the multiplicative group $\zns{p}$ of integers less than $p$  and relatively prime to $p$. We can define $h\left(m\right)=2^{m}\pmod{p}$. Since $0\not\in \zns{p}$, we know that $h\left(m\right)\neq 0$ for any integer $m$. Since $2$ is a generator of $\zns{p}$, we know that $h\left(m\right)$ has maximal order in $\zns{p}$.
+Suppose we are working over $\z{p}$, where $p=2^{255}-19$. Consider the multiplicative group $\zns{p}$ of integers less than $p$  and relatively prime to $p$. We can define $h\left(m\right)=2^{m}\pmod{p}$. Since $0\notin \zns{p}$, we know that $h\left(m\right)\neq 0$ for any integer $m$. Since $2$ is a generator of $\zns{p}$, we know that $h\left(m\right)$ has maximal order in $\zns{p}$.
 
 During share generation, given an integer input $x$, define $x'=h\left(x\right)$. Then, generate the corresponding share according to $\left(x',f\left(x'\right)\right)$. Because $x'\neq 0$, counters and external inputs can be used without the risk of generating a zero share.
 
diff --git a/themes/book/assets/menu-reset.js b/themes/book/assets/menu-reset.js
index 37cb47b..5e3ada8 100644
--- a/themes/book/assets/menu-reset.js
+++ b/themes/book/assets/menu-reset.js
@@ -1,7 +1,7 @@
 (function() {
   var menu = document.querySelector("aside .book-menu-content");
   addEventListener("beforeunload", function(event) {
-      localStorage.setItem("menu.scrollTop", menu.scrollTop);
+      localStorage.setItem("menu.scrollTop", menu.scrollTop || 0);
   });
   menu.scrollTop = localStorage.getItem("menu.scrollTop");
 })();