diff --git a/src/main/java/org/olat/admin/quota/QuotaManagerImpl.java b/src/main/java/org/olat/admin/quota/QuotaManagerImpl.java
index 2f52dfe954abda69f3e81c4beff0c6c4a2bc37e7..7d0f1757b77fc944427c9e134043e7cd412e288d 100644
--- a/src/main/java/org/olat/admin/quota/QuotaManagerImpl.java
+++ b/src/main/java/org/olat/admin/quota/QuotaManagerImpl.java
@@ -527,7 +527,7 @@ public class QuotaManagerImpl implements QuotaManager, InitializingBean {
 
 	private String getDefaultQuotaIdentifier(String path) {
 		String identifier = QuotaConstants.IDENTIFIER_DEFAULT;
-		if(path.startsWith(QuotaConstants.IDENTIFIER_DEFAULT)) {
+		if(path == null || path.startsWith(QuotaConstants.IDENTIFIER_DEFAULT)) {
 			identifier = path;
 		} else if(path.startsWith("/cts/folders/BusinessGroup/")) {
 			identifier = QuotaConstants.IDENTIFIER_DEFAULT_GROUPS;