diff --git a/rendercv/data/sample_content.yaml b/rendercv/data/sample_content.yaml
index 6b3b0e9a..233b8bfd 100644
--- a/rendercv/data/sample_content.yaml
+++ b/rendercv/data/sample_content.yaml
@@ -61,7 +61,7 @@ sections:
         - Created a service to provide gradient across VS and VS add-ins, optimizing
           its performance via caching
         - Built an app to compute the similarity of all methods in a codebase, reducing
-          the time from $\mathcal{O}(n^2)$ to $\mathcal{O}(n \log n)$
+          the time from $$\mathcal{O}(n^2)$$ to $$\mathcal{O}(n \log n)$$
         - Created a test case generation tool that creates random XML docs from XML
           Schema
         - Automated the extraction and processing of large datasets from legacy systems