diff --git a/webapp/path_navigator.html b/webapp/path_navigator.html
index 101e9b0..fbb5bd0 100644
--- a/webapp/path_navigator.html
+++ b/webapp/path_navigator.html
@@ -752,6 +752,11 @@
             }
         });
         
+        // Also trigger on spinner button clicks
+        document.getElementById("fundamentalInput").addEventListener("input", () => {
+            setFundamental();
+        });
+        
         async function setFundamental() {
             const input = document.getElementById("fundamentalInput");
             const fundamental = parseFloat(input.value);