diff --git a/packages/common/lib/src/ld_context.dart b/packages/common/lib/src/ld_context.dart
index f9fe912..1cd21b3 100644
--- a/packages/common/lib/src/ld_context.dart
+++ b/packages/common/lib/src/ld_context.dart
@@ -20,7 +20,7 @@ String _encodeKey(String key) {
 }
 
 bool _validKind(String kind) {
-  return kind != 'kind' && _kindExp.hasMatch(kind);
+  return kind != 'kind' && kind != 'multi' && _kindExp.hasMatch(kind);
 }
 
 bool _referenceIs(AttributeReference reference, String value) {
diff --git a/packages/common/test/ld_context_test.dart b/packages/common/test/ld_context_test.dart
index 48bc3a9..70b534a 100644
--- a/packages/common/test/ld_context_test.dart
+++ b/packages/common/test/ld_context_test.dart
@@ -52,11 +52,22 @@ void main() {
   });
 
   group('given invalid kinds', () {
-    for (var kind in ['', 'kind', '#*%']) {
-      test('invalid kinds produce invalid contexts', () {
+    for (var kind in ['', 'kind', 'multi', '#*%']) {
+      test('kind "$kind" produces an invalid context', () {
         expect(LDContextBuilder().kind(kind, 'my-key').build().valid, false);
       });
     }
+
+    test('a multi-context containing an individual "multi" kind is invalid',
+        () {
+      final context = LDContextBuilder()
+          .kind('user', 'user-key')
+          .kind('multi', 'other-key')
+          .build();
+      expect(context.valid, false);
+      expect(context.canonicalKey, '');
+      expect(context.keys, isEmpty);
+    });
   });
 
   test('can get the canonical key for an invalid context', () {