diff --git a/EssentialsGroupManager/src/Changelog.txt b/EssentialsGroupManager/src/Changelog.txt
index 876dc28b7..741777748 100644
--- a/EssentialsGroupManager/src/Changelog.txt
+++ b/EssentialsGroupManager/src/Changelog.txt
@@ -103,4 +103,5 @@ v 1.8:
 	- Catch NullPointerErrors generated by blank permission nodes.
 	- Removed '- bukkit.command' form the globalgroups permission nodes.
 v 1.9:
-	- Optimize populating Bukkit perms so we no longer calculate the child nodes (Bukkit already does this).
\ No newline at end of file
+	- Optimize populating Bukkit perms so we no longer calculate the child nodes (Bukkit already does this).
+	- Added a tidy error message for invalid permission entries in GlobalGroups.
\ No newline at end of file
diff --git a/EssentialsGroupManager/src/org/anjocaido/groupmanager/GlobalGroups.java b/EssentialsGroupManager/src/org/anjocaido/groupmanager/GlobalGroups.java
index f1bf10985..d9715d4be 100644
--- a/EssentialsGroupManager/src/org/anjocaido/groupmanager/GlobalGroups.java
+++ b/EssentialsGroupManager/src/org/anjocaido/groupmanager/GlobalGroups.java
@@ -125,8 +125,12 @@ public class GlobalGroups {
 	
 					if (element != null)
 						if (element instanceof List) {
-							for (String node : (List<String>) element) {
-								newGroup.addPermission(node);
+							try {
+								for (String node : (List<String>) element) {
+									newGroup.addPermission(node);
+								}
+							} catch (ClassCastException e) {
+								throw new IllegalArgumentException("Invalid permission node for global group:  " + groupName);
 							}
 						} else if (element instanceof String) {
 							newGroup.addPermission((String) element);