diff --git a/pyproject.toml b/pyproject.toml
index 6d3d946db..386b79f7e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -141,7 +141,6 @@ exclude = [
 ignore = [
   "icepyx/quest/*",
   "icepyx/core/auth.py",
-  # "icepyx/core/is2ref.py",
   "icepyx/core/read.py",
   "icepyx/core/variables.py",
   "icepyx/core/visualization.py",