diff --git a/common/changes/office-ui-fabric-react/arkgupta-dragDropBorderStyling_2018-11-20-19-54.json b/common/changes/office-ui-fabric-react/arkgupta-dragDropBorderStyling_2018-11-20-19-54.json
new file mode 100644
index 00000000000000..24cd7ca2ebed58
--- /dev/null
+++ b/common/changes/office-ui-fabric-react/arkgupta-dragDropBorderStyling_2018-11-20-19-54.json
@@ -0,0 +1,11 @@
+{
+  "changes": [
+    {
+      "packageName": "office-ui-fabric-react",
+      "comment": "adding more specificity by adding selectors",
+      "type": "patch"
+    }
+  ],
+  "packageName": "office-ui-fabric-react",
+  "email": "arkgupta@microsoft.com"
+}
\ No newline at end of file
diff --git a/packages/office-ui-fabric-react/src/components/DetailsList/DetailsColumn.styles.ts b/packages/office-ui-fabric-react/src/components/DetailsList/DetailsColumn.styles.ts
index 29dc0df0cd008d..85ad345b764e6d 100644
--- a/packages/office-ui-fabric-react/src/components/DetailsList/DetailsColumn.styles.ts
+++ b/packages/office-ui-fabric-react/src/components/DetailsList/DetailsColumn.styles.ts
@@ -191,9 +191,13 @@ export const getStyles = (props: IDetailsColumnStyleProps): IDetailsColumnStyles
 
     borderWhileDragging: [
       {
-        borderStyle: 'solid',
-        borderWidth: 1,
-        borderColor: palette.themePrimary
+        selectors: {
+          '.ms-DetailsHeader &.ms-DetailsHeader-cell': {
+            borderStyle: 'solid',
+            borderWidth: 1,
+            borderColor: palette.themePrimary
+          }
+        }
       }
     ]
   };