diff --git a/index.html b/index.html
index 62f6e91..5446849 100644
--- a/index.html
+++ b/index.html
@@ -191,6 +191,7 @@ <h2 class="section-title">Contact</h2>
       var reduceMotion = window.matchMedia && window.matchMedia('(prefers-reduced-motion: reduce)').matches;
       var scrollDebounce = null;
       var lastScrollIndex = -1;
+      var suppressProgrammaticScrollSync = false;
 
       function indexFromCenter() {
         if (!carousel) return 0;
@@ -251,6 +252,7 @@ <h2 class="section-title">Contact</h2>
         }
 
         if (!fromScroll) {
+          suppressProgrammaticScrollSync = true;
           scrollTabToCenter(index);
         }
 
@@ -264,6 +266,10 @@ <h2 class="section-title">Contact</h2>
         if (scrollDebounce) clearTimeout(scrollDebounce);
         scrollDebounce = setTimeout(function () {
           scrollDebounce = null;
+          if (suppressProgrammaticScrollSync) {
+            suppressProgrammaticScrollSync = false;
+            return;
+          }
           var idx = indexFromCenter();
           if (idx === lastScrollIndex) return;
           setActive(idx, false, true);
@@ -314,7 +320,7 @@ <h2 class="section-title">Contact</h2>
       tabs.forEach(function (t, i) {
         if (t.classList.contains('is-active')) initialIndex = i;
       });
-      setActive(initialIndex, false, false);
+      setActive(initialIndex, false, true);
     })();
   </script>
 </body>