diff --git a/src/add-ons/kernel/file_systems/userlandfs/kernel_add_on/UserlandFS.cpp b/src/add-ons/kernel/file_systems/userlandfs/kernel_add_on/UserlandFS.cpp
index 7728fc9137..dbae4c164e 100644
--- a/src/add-ons/kernel/file_systems/userlandfs/kernel_add_on/UserlandFS.cpp
+++ b/src/add-ons/kernel/file_systems/userlandfs/kernel_add_on/UserlandFS.cpp
@@ -164,7 +164,7 @@ UserlandFS::_UnregisterFileSystem(const char* name)
 		if (!fileSystemInitializer)
 			return B_BAD_VALUE;
 
-		deleteFS = fileSystemInitializer->ReleaseReference();
+		deleteFS = fileSystemInitializer->ReleaseReference() == 1;
 		if (deleteFS)
 			fFileSystems->Remove(name);
 	}