diff --git a/Core/src/main/java/com/intellectualcrafters/plot/commands/Cluster.java b/Core/src/main/java/com/intellectualcrafters/plot/commands/Cluster.java
index cdba5d02d..711a897ca 100644
--- a/Core/src/main/java/com/intellectualcrafters/plot/commands/Cluster.java
+++ b/Core/src/main/java/com/intellectualcrafters/plot/commands/Cluster.java
@@ -115,6 +115,10 @@ public class Cluster extends SubCommand {
                     return false;
                 }
                 // Check if it occupies existing plots
+                if (!area.contains(pos1) || !area.contains(pos2)) {
+                    C.CLUSTER_OUTSIDE.send(player, area);
+                    return false;
+                }
                 Set<Plot> plots = area.getPlotSelectionOwned(pos1, pos2);
                 if (!plots.isEmpty()) {
                     if (!Permissions.hasPermission(player, "plots.cluster.create.other")) {
diff --git a/Core/src/main/java/com/intellectualcrafters/plot/config/C.java b/Core/src/main/java/com/intellectualcrafters/plot/config/C.java
index 0f8919c47..3c4f93b33 100644
--- a/Core/src/main/java/com/intellectualcrafters/plot/config/C.java
+++ b/Core/src/main/java/com/intellectualcrafters/plot/config/C.java
@@ -115,6 +115,7 @@ public enum C {
     CLUSTER_LIST_HEADING("$2There are $1%s$2 clusters in this world", "Cluster"),
     CLUSTER_LIST_ELEMENT("$2 - $1%s&-", "Cluster"),
     CLUSTER_INTERSECTION("$2The proposed area overlaps with: %s0", "Cluster"),
+    CLUSTER_OUTSIDE("$2The proposed area is outside the plot area: %s0", "Cluster"),
     CLUSTER_ADDED("$4Successfully created the cluster.", "Cluster"),
     CLUSTER_DELETED("$4Successfully deleted the cluster.", "Cluster"),
     CLUSTER_RESIZED("$4Successfully resized the cluster.", "Cluster"),