diff --git a/footer.html b/footer.html
index 58992d2..0a52902 100644
--- a/footer.html
+++ b/footer.html
@@ -61,6 +61,12 @@
 						});
 					}
 				});
+
+				[...document.querySelectorAll(".link a")].forEach(link => {
+					if (link.href.endsWith(".ics")) {
+						link.href = link.href.replace(/https?/, "webcal");
+					}
+				})
 			</script>
 		</div>
 	</body>