diff --git a/lib/commands/ls.js b/lib/commands/ls.js
index d3932072b7d34..073ca0c6992e8 100644
--- a/lib/commands/ls.js
+++ b/lib/commands/ls.js
@@ -92,7 +92,7 @@ class LS extends ArboristWorkspaceCmd {
       }
 
       if (this.npm.flatOptions.includeWorkspaceRoot
-          && !edge.to.isWorkspace) {
+          && edge.to && !edge.to.isWorkspace) {
         return true
       }