diff --git a/Lib/doctest.py b/Lib/doctest.py
index 2776d74bf9b586..a63df46a112e64 100644
--- a/Lib/doctest.py
+++ b/Lib/doctest.py
@@ -1110,7 +1110,7 @@ def _find_lineno(self, obj, source_lines):
             if source_lines is None:
                 return None
             pat = re.compile(r'^\s*class\s*%s\b' %
-                             getattr(obj, '__name__', '-'))
+                             re.escape(getattr(obj, '__name__', '-')))
             for i, line in enumerate(source_lines):
                 if pat.match(line):
                     lineno = i
diff --git a/Misc/NEWS.d/next/Library/2023-08-07-14-12-07.gh-issue-107715.238r2f.rst b/Misc/NEWS.d/next/Library/2023-08-07-14-12-07.gh-issue-107715.238r2f.rst
new file mode 100644
index 00000000000000..cd2a5d0d5324a2
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2023-08-07-14-12-07.gh-issue-107715.238r2f.rst
@@ -0,0 +1 @@
+Fix `doctest.DocTestFinder.find` in presence of class names with special characters. Patch by Gertjan van Zwieten.