diff --git a/src/contents/engineering.tsx b/src/contents/engineering.tsx
index 3f45a5b310b4ea9bc8834876c44b15704596746d..1dbcf3f7bfa9e2a18add6689578ed51d44ff18c8 100644
--- a/src/contents/engineering.tsx
+++ b/src/contents/engineering.tsx
@@ -400,7 +400,7 @@ export function Engineering() {
             <div className="enginneeringtab" id="tab-delivery" style={{display: "none"}}>
                <section id="Delivery sec" >
                   <div className="eng-box box" >
-                     <H3 id="Delivery head" text="Delivery"></H3>
+                     <H3 id="Delivery" text="Delivery"></H3>
                      <p>The design path of our lipid nanoparticle (LNP) for mRNA delivery underwent multiple cycles of research and discussion, marked by important decision points and learnings along the way. By ongoing further improvement, we designed our lungs-specific LNP called AirBuddy with improved stability aspects, becoming more precise in the delivery of our therapeutic cargo LNP by LNP.</p>
                   </div>
                   <div className="box" >