diff --git a/plugins/slick.customTooltip.css b/plugins/slick.customtooltip.css
similarity index 99%
rename from plugins/slick.customTooltip.css
rename to plugins/slick.customtooltip.css
index 19ff0387..1469479f 100644
--- a/plugins/slick.customTooltip.css
+++ b/plugins/slick.customtooltip.css
@@ -39,4 +39,4 @@
 }
 .slick-custom-tooltip.tooltip-arrow.arrow-right-align::after {
   margin-left: calc(100% - 16px - 9px); /* arrow size * 2 => 16px, extra margin of 9px */
-}
\ No newline at end of file
+}