diff --git a/fail2ban/tests/samplestestcase.py b/fail2ban/tests/samplestestcase.py
index 657d3d82..0a88af2a 100644
--- a/fail2ban/tests/samplestestcase.py
+++ b/fail2ban/tests/samplestestcase.py
@@ -78,6 +78,8 @@ def testSampleRegexsFactory(name):
 				self.filter.setMaxLines(opt[3])
 			elif opt[2] == "addignoreregex":
 				self.filter.addIgnoreRegex(opt[3])
+			elif opt[2] == "datepattern":
+				self.filter.setDatePattern(opt[3])
 
 		self.assertTrue(
 			os.path.isfile(os.path.join(TEST_FILES_DIR, "logs", name)),