diff --git a/EssentialsAntiBuild/src/com/earth2me/essentials/antibuild/EssentialsAntiBuildListener.java b/EssentialsAntiBuild/src/com/earth2me/essentials/antibuild/EssentialsAntiBuildListener.java
index d2f46586f..a14036c2e 100644
--- a/EssentialsAntiBuild/src/com/earth2me/essentials/antibuild/EssentialsAntiBuildListener.java
+++ b/EssentialsAntiBuild/src/com/earth2me/essentials/antibuild/EssentialsAntiBuildListener.java
@@ -36,6 +36,10 @@ public class EssentialsAntiBuildListener implements Listener
 	{
 		if (block == null)
 		{
+			if (ess.getSettings().isDebug())
+			{
+				ess.getLogger().log(Level.INFO, "AntiBuild permission check failed, invalid block.");
+			}
 			return false;
 		}
 		return metaPermCheck(user, action, block.getTypeId(), block.getData());