diff --git a/core/api/src/main/java/org/onosproject/net/group/DefaultGroupDescription.java b/core/api/src/main/java/org/onosproject/net/group/DefaultGroupDescription.java
index 119d535..1962e0a 100644
--- a/core/api/src/main/java/org/onosproject/net/group/DefaultGroupDescription.java
+++ b/core/api/src/main/java/org/onosproject/net/group/DefaultGroupDescription.java
@@ -17,6 +17,7 @@
 
 import static com.google.common.base.MoreObjects.toStringHelper;
 import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.common.base.Preconditions.checkArgument;
 
 import java.util.Objects;
 
@@ -61,6 +62,10 @@
         this.type = checkNotNull(type);
         this.deviceId = checkNotNull(deviceId);
         this.buckets = checkNotNull(buckets);
+        if (this.type == GroupDescription.Type.INDIRECT) {
+            checkArgument(buckets.buckets().size() == 1, "Indirect group " +
+                    "should have only one action bucket");
+       }
         this.appCookie = appCookie;
         this.givenGroupId = groupId;
         this.appId = appId;