diff --git a/src/sql/workbench/contrib/dataExplorer/browser/media/dataExplorer.contribution.css b/src/sql/workbench/contrib/dataExplorer/browser/media/dataExplorer.contribution.css
index 111e49c4bd..a9dbbb2890 100644
--- a/src/sql/workbench/contrib/dataExplorer/browser/media/dataExplorer.contribution.css
+++ b/src/sql/workbench/contrib/dataExplorer/browser/media/dataExplorer.contribution.css
@@ -9,7 +9,12 @@
 	background-color: rgba(255, 255, 255, 0.4);
 }
 
-/* Activity Bar */
+/* Checked */
 .monaco-workbench .activitybar .monaco-action-bar .checked .action-label.dataExplorer {
 	background-color: rgb(255, 255, 255); /* this is a patch, will need to find a better long term fix*/
 }
+
+/* Hovered */
+.monaco-workbench .activitybar .monaco-action-bar .action-label.dataExplorer:hover {
+	background-color: rgb(255, 255, 255);
+}
diff --git a/src/sql/workbench/contrib/notebook/browser/media/notebook.contribution.css b/src/sql/workbench/contrib/notebook/browser/media/notebook.contribution.css
index 711e9d0414..83305ef13e 100644
--- a/src/sql/workbench/contrib/notebook/browser/media/notebook.contribution.css
+++ b/src/sql/workbench/contrib/notebook/browser/media/notebook.contribution.css
@@ -8,11 +8,16 @@
 	background-color: rgba(255, 255, 255, 0.4);
 }
 
-/* Activity Bar */
+/* Checked */
 .monaco-workbench .activitybar .monaco-action-bar .checked .action-label.book {
 	background-color: rgb(255, 255, 255);
 }
 
+/* Hovered */
+.monaco-workbench .activitybar .monaco-action-bar .action-label.book:hover {
+	background-color: rgba(255, 255, 255);
+}
+
 .notebookExplorer-viewlet > .header {
 	height: 41px;
 	box-sizing: border-box;