diff --git a/tests/test_format.py b/tests/test_format.py
index 5c78afe0ba6..fc9678ad27c 100644
--- a/tests/test_format.py
+++ b/tests/test_format.py
@@ -41,6 +41,7 @@
     "fmtskip3",
     "fmtskip4",
     "fmtskip5",
+    "fmtskip6",
     "fstring",
     "function",
     "function2",