diff --git a/stix2/test/v20/test_indicator.py b/stix2/test/v20/test_indicator.py
index f20c902..1ae33ec 100644
--- a/stix2/test/v20/test_indicator.py
+++ b/stix2/test/v20/test_indicator.py
@@ -197,6 +197,7 @@ def test_invalid_indicator_pattern():
 def test_indicator_stix21_invalid_pattern():
     now = dt.datetime(2017, 1, 1, 0, 0, 1, tzinfo=pytz.utc)
     epoch = dt.datetime(1970, 1, 1, 0, 0, 1, tzinfo=pytz.utc)
+    patrn = "[EXISTS windows-registry-key:values]"
 
     with pytest.raises(stix2.exceptions.InvalidValueError) as excinfo:
         stix2.v20.Indicator(
@@ -204,7 +205,7 @@ def test_indicator_stix21_invalid_pattern():
             id=INDICATOR_ID,
             created=now,
             modified=now,
-            pattern="[EXISTS windows-registry-key:values]",
+            pattern=patrn,
             valid_from=epoch,
             labels=["malicious-activity"],
         )
diff --git a/stix2/test/v21/test_indicator.py b/stix2/test/v21/test_indicator.py
index 77f9fde..152f253 100644
--- a/stix2/test/v21/test_indicator.py
+++ b/stix2/test/v21/test_indicator.py
@@ -256,6 +256,7 @@ def test_indicator_with_custom_embed_objs_extra_props_error():
 def test_indicator_stix20_invalid_pattern():
     now = dt.datetime(2017, 1, 1, 0, 0, 1, tzinfo=pytz.utc)
     epoch = dt.datetime(1970, 1, 1, 0, 0, 1, tzinfo=pytz.utc)
+    patrn = "[win-registry-key:key = 'hkey_local_machine\\\\foo\\\\bar'] WITHIN 5 SECONDS WITHIN 6 SECONDS"
 
     with pytest.raises(stix2.exceptions.InvalidValueError) as excinfo:
         stix2.v21.Indicator(
@@ -263,7 +264,7 @@ def test_indicator_stix20_invalid_pattern():
             id=INDICATOR_ID,
             created=now,
             modified=now,
-            pattern="[win-registry-key:key = 'hkey_local_machine\\\\foo\\\\bar'] WITHIN 5 SECONDS WITHIN 6 SECONDS",
+            pattern=patrn,
             pattern_type="stix",
             valid_from=epoch,
             indicator_types=['malicious-activity'],
@@ -271,3 +272,21 @@ def test_indicator_stix20_invalid_pattern():
 
     assert excinfo.value.cls == stix2.v21.Indicator
     assert "FAIL: The same qualifier is used more than once" in str(excinfo.value)
+
+    ind = stix2.v21.Indicator(
+        type="indicator",
+        id=INDICATOR_ID,
+        created=now,
+        modified=now,
+        pattern=patrn,
+        pattern_type="stix",
+        pattern_version="2.0",
+        valid_from=epoch,
+        indicator_types=['malicious-activity'],
+    )
+
+    assert ind.id == INDICATOR_ID
+    assert ind.indicator_types == ['malicious-activity']
+    assert ind.pattern == patrn
+    assert ind.pattern_type == "stix"
+    assert ind.pattern_version == "2.0"