diff --git a/less/carousel.less b/less/carousel.less
index 590f5756eaae..252011e9e250 100644
--- a/less/carousel.less
+++ b/less/carousel.less
@@ -101,6 +101,7 @@
   color: @carousel-control-color;
   text-align: center;
   text-shadow: @carousel-text-shadow;
+  background-color: rgba(0, 0, 0, 0); // Fix IE9 click-thru bug
   // We can't have this transition here because WebKit cancels the carousel
   // animation if you trip this while in the middle of another animation.