diff --git a/desc/plotting.py b/desc/plotting.py
index 55fac468f3..520d1c9524 100644
--- a/desc/plotting.py
+++ b/desc/plotting.py
@@ -971,9 +971,9 @@ def plot_3d(
     if grid.num_rho == 1:
         n1, n2 = grid.num_theta, grid.num_zeta
         if not grid.nodes[-1][2] == 2 * np.pi:
-            p1, p2 = True, False
+            p1, p2 = False, False
         else:
-            p1, p2 = True, True
+            p1, p2 = False, True
     elif grid.num_theta == 1:
         n1, n2 = grid.num_rho, grid.num_zeta
         p1, p2 = False, True