diff --git a/tasks.py b/tasks.py
index 1ebb860f..58f8282b 100644
--- a/tasks.py
+++ b/tasks.py
@@ -210,7 +210,7 @@ def install_poetry(c: Context, dev: bool, local: bool, hide: bool) -> None:
 
 
 def install_ospf_mdr(c: Context, os_info: OsInfo, hide: bool) -> None:
-    if c.run("which zebra", warn=True, hide=hide):
+    if c.run("sudo which zebra", warn=True, hide=hide):
         print("\nquagga already installed, skipping ospf mdr")
         return
     if os_info.like == OsLike.DEBIAN: