diff --git a/assets/css/general.css b/assets/css/general.css
index 0066ed66c..40e945d31 100644
--- a/assets/css/general.css
+++ b/assets/css/general.css
@@ -1402,3 +1402,9 @@ svg text.month { fill: #AAA; }
 	.legendClose {
 		float: right;
 	}
+
+
+/* Ensure tooltip appears above everything */
+.tooltip {
+    z-index: 9999 !important;
+}
\ No newline at end of file