diff --git a/plugin/src/main/java/net/aufdemrand/denizen/scripts/commands/world/ModifyBlockCommand.java b/plugin/src/main/java/net/aufdemrand/denizen/scripts/commands/world/ModifyBlockCommand.java
index 0d786ec7cb..3dd8beb4cc 100644
--- a/plugin/src/main/java/net/aufdemrand/denizen/scripts/commands/world/ModifyBlockCommand.java
+++ b/plugin/src/main/java/net/aufdemrand/denizen/scripts/commands/world/ModifyBlockCommand.java
@@ -181,9 +181,11 @@ public void execute(final ScriptEntry scriptEntry) throws CommandExecutionExcept
 
         if ((locations == null || locations.size() == 0) && (location_list == null || location_list.size() == 0)) {
             dB.echoError("Must specify a valid location!");
+            return;
         }
         if (materialList.size() == 0) {
             dB.echoError("Must specify a valid material!");
+            return;
         }
 
         no_physics = !doPhysics;