diff --git a/adafruit_displayio_layout/layouts/tab_layout.py b/adafruit_displayio_layout/layouts/tab_layout.py
index e3ee2ca..2d05586 100644
--- a/adafruit_displayio_layout/layouts/tab_layout.py
+++ b/adafruit_displayio_layout/layouts/tab_layout.py
@@ -90,9 +90,9 @@ def __init__(
             if hasattr(board, "DISPLAY"):
                 display = board.DISPLAY
         if inactive_tab_spritesheet is None:
-            raise AttributeError("Must pass active_tab_spritesheet")
-        if showing_tab_spritesheet is None:
             raise AttributeError("Must pass inactive_tab_spritesheet")
+        if showing_tab_spritesheet is None:
+            raise AttributeError("Must pass showing_tab_spritesheet")
         if tab_count is None:
             raise AttributeError("Must pass tab_count")