diff --git a/src/vs/workbench/browser/parts/editor/media/sidebyside.css b/src/vs/workbench/browser/parts/editor/media/sidebyside.css
index 52ce4681508d5633b2f55b945de2bd43b61b0bea..8a27f72727568161e8209b479e42b7cd480c0d9a 100644
--- a/src/vs/workbench/browser/parts/editor/media/sidebyside.css
+++ b/src/vs/workbench/browser/parts/editor/media/sidebyside.css
@@ -11,6 +11,10 @@
 	background-color: #2D2D2D;
 }
 
+.monaco-workbench > .editor > .content.dragging > .monaco-sash {
+	display: none; /* hide sashes while dragging editors around */
+}
+
 #monaco-workbench-editor-move-overlay,
 #monaco-workbench-editor-drop-overlay {
 	position: absolute;