diff --git a/packages/default/scss/gantt/_layout.scss b/packages/default/scss/gantt/_layout.scss
index 24efe163338..0ce66f7ab8b 100644
--- a/packages/default/scss/gantt/_layout.scss
+++ b/packages/default/scss/gantt/_layout.scss
@@ -58,6 +58,11 @@
             display: inline-flex;
         }
 
+        // Splitter
+        .k-gantt-splitter {
+            border-width: 0;
+        }
+
         // React gantt
         .k-treelist-scrollable {
             width: 100%;
diff --git a/packages/fluent/scss/gantt/_layout.scss b/packages/fluent/scss/gantt/_layout.scss
index 01c5d1954c1..a138167627c 100644
--- a/packages/fluent/scss/gantt/_layout.scss
+++ b/packages/fluent/scss/gantt/_layout.scss
@@ -63,6 +63,11 @@
             display: inline-flex;
         }
 
+        // Splitter
+        .k-gantt-splitter {
+            border-width: 0;
+        }
+
         // React gantt
         .k-treelist-scrollable {
             width: 100%;