diff --git a/pyproject.toml b/pyproject.toml
index d02beb0bc..723da45dd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -160,7 +160,6 @@ ignore = [
     # ruff ignore
     "RUF005", # Consider `(x, *y)` instead of concatenation
     "RUF012", # Mutable class attributes should be annotated with `typing.ClassVar`
-    "RUF015", # Prefer `next(iter(x))` over single element slice
 ]
 
 [tool.ruff.format]
diff --git a/testing/python/collect.py b/testing/python/collect.py
index 4d1f97b34..745550f07 100644
--- a/testing/python/collect.py
+++ b/testing/python/collect.py
@@ -1209,7 +1209,7 @@ class TestReportInfo:
         classcol = pytester.collect_by_name(modcol, "TestClass")
         assert isinstance(classcol, Class)
         path, lineno, msg = classcol.reportinfo()
-        func = list(classcol.collect())[0]
+        func = next(iter(classcol.collect()))
         assert isinstance(func, Function)
         path, lineno, msg = func.reportinfo()