diff --git a/docs/src/structure-factor.md b/docs/src/structure-factor.md
index 47cba872d..9b7d0860d 100644
--- a/docs/src/structure-factor.md
+++ b/docs/src/structure-factor.md
@@ -43,7 +43,7 @@ momentum $𝐤 → -𝐤$.
 
 ## Discrete sums on the lattice
 
-<div>
+<pre>
 
 Our interest will be decorated lattice systems defined by the site positions,
 
@@ -114,7 +114,7 @@ C_{ij}(𝐤,t) \equiv ⟨\hat{A}_{𝐤,i}(0) \hat{B}^\dagger_{𝐤,j}(t)⟩.
 \end{equation}
 $$
 
-</div>
+</pre>
 
 ## Lehmann representation in frequency space