diff --git a/jslib b/jslib
index 85587e06..64be82d5 160000
--- a/jslib
+++ b/jslib
@@ -1 +1 @@
-Subproject commit 85587e06728aabd118f3cb6b06110be92202049b
+Subproject commit 64be82d5ccab9e24a27ea840acb4693967e3ed56
diff --git a/src/services/baseDirectory.service.ts b/src/services/baseDirectory.service.ts
index 2f9b348f..2c506174 100644
--- a/src/services/baseDirectory.service.ts
+++ b/src/services/baseDirectory.service.ts
@@ -51,13 +51,13 @@ export abstract class BaseDirectoryService {
 
     protected filterOutResult(setFilter: [boolean, Set<string>], result: string) {
         if (setFilter != null) {
-            result = result.trim().toLowerCase();
+            const cleanResult = result != null ? result.trim().toLowerCase() : '--';
             const excluded = setFilter[0];
             const set = setFilter[1];
 
-            if (excluded && set.has(result)) {
+            if (excluded && set.has(cleanResult)) {
                 return true;
-            } else if (!excluded && !set.has(result)) {
+            } else if (!excluded && !set.has(cleanResult)) {
                 return true;
             }
         }