diff --git a/app/src/main/java/io/xpipe/app/browser/BrowserModel.java b/app/src/main/java/io/xpipe/app/browser/BrowserModel.java
index 6626aa83..20d1c511 100644
--- a/app/src/main/java/io/xpipe/app/browser/BrowserModel.java
+++ b/app/src/main/java/io/xpipe/app/browser/BrowserModel.java
@@ -133,7 +133,9 @@ public class BrowserModel {
                 selected.setValue(null);
             }
             open.closeSync();
-            openFileSystems.remove(open);
+            synchronized (BrowserModel.this) {
+                openFileSystems.remove(open);
+            }
         });
     }