diff --git a/tags.json b/tags.json
index d647000..0b1bc3f 100644
--- a/tags.json
+++ b/tags.json
@@ -8,7 +8,8 @@
     "Sub",
     "GetAZs",
     "GetAtt",
-    "Condition"
+    "Condition",
+    "ImportValue"
   ],
   "sequence": [
     "And",
diff --git a/test.yml b/test.yml
index f27af6e..041e5da 100644
--- a/test.yml
+++ b/test.yml
@@ -2,6 +2,7 @@ InstanceId:
   Condition: DoLaunchInstance
   Description: Stack Instance ID
   Value: !<!Ref> Box
+  LaunchConfig: !ImportValue "my-import-value"
   UserData: !If
     - DoWriteConnectionString
     - !Base64