diff --git a/stack.sh b/stack.sh
index c1e06cb102..3827d77614 100755
--- a/stack.sh
+++ b/stack.sh
@@ -193,6 +193,9 @@ else
     # Set up devstack sudoers
     TEMPFILE=`mktemp`
     echo "`whoami` ALL=(root) NOPASSWD:ALL" >$TEMPFILE
+    # Some binaries might be under /sbin or /usr/sbin, so make sure sudo will
+    # see them by forcing PATH
+    echo "Defaults:`whoami` secure_path=/sbin:/usr/sbin:/usr/bin:/bin:/usr/local/sbin:/usr/local/bin" >> $TEMPFILE
     chmod 0440 $TEMPFILE
     sudo chown root:root $TEMPFILE
     sudo mv $TEMPFILE /etc/sudoers.d/50_stack_sh