diff --git a/stix2/common.py b/stix2/common.py
index 29cbf62..c8c243d 100644
--- a/stix2/common.py
+++ b/stix2/common.py
@@ -2,7 +2,7 @@
 
 from .other import ExternalReference, GranularMarking
 from .properties import (BooleanProperty, ListProperty, ReferenceProperty,
-                         TimestampProperty)
+                         StringProperty, TimestampProperty)
 from .utils import NOW
 
 COMMON_PROPERTIES = {
@@ -11,6 +11,7 @@ COMMON_PROPERTIES = {
     'modified': TimestampProperty(default=lambda: NOW),
     'external_references': ListProperty(ExternalReference),
     'revoked': BooleanProperty(),
+    'labels': ListProperty(StringProperty),
     'created_by_ref': ReferenceProperty(type="identity"),
     'object_marking_refs': ListProperty(ReferenceProperty(type="marking-definition")),
     'granular_markings': ListProperty(GranularMarking),
diff --git a/stix2/sdo.py b/stix2/sdo.py
index 693b750..a2f0062 100644
--- a/stix2/sdo.py
+++ b/stix2/sdo.py
@@ -57,7 +57,6 @@ class Identity(_STIXBase):
     _properties.update({
         'type': TypeProperty(_type),
         'id': IDProperty(_type),
-        'labels': ListProperty(StringProperty),
         'name': StringProperty(required=True),
         'description': StringProperty(),
         'identity_class': StringProperty(required=True),
diff --git a/stix2/test/test_attack_pattern.py b/stix2/test/test_attack_pattern.py
index c0891a5..618875e 100644
--- a/stix2/test/test_attack_pattern.py
+++ b/stix2/test/test_attack_pattern.py
@@ -67,4 +67,15 @@ def test_parse_attack_pattern(data):
     assert ap.external_references[0].source_name == 'capec'
     assert ap.name == "Spear Phishing"
 
+
+def test_attack_pattern_invalid_labels():
+    with pytest.raises(stix2.exceptions.InvalidValueError):
+        stix2.AttackPattern(
+            id="attack-pattern--0c7b5b88-8ff7-4a4d-aa9d-feb398cd0061",
+            created="2016-05-12T08:17:27Z",
+            modified="2016-05-12T08:17:27Z",
+            name="Spear Phishing",
+            labels=1
+        )
+
 # TODO: Add other examples