diff --git a/ext/crlib b/ext/crlib
index 5225f85..f20b330 160000
--- a/ext/crlib
+++ b/ext/crlib
@@ -1 +1 @@
-Subproject commit 5225f857c44ced8e61e65b25892a0c8ab015250c
+Subproject commit f20b3301c67b61f7dba30aa8b5de4e1a31d67f4b
diff --git a/src/graph.cpp b/src/graph.cpp
index 8131a4c..3a12807 100644
--- a/src/graph.cpp
+++ b/src/graph.cpp
@@ -1313,6 +1313,11 @@ void BotGraph::syncCollectOnline () {
    }
    String localFile = plat.tmpfname ();
 
+   // no temp file, no fun
+   if (localFile.empty ()) {
+      return;
+   }
+
    // don't forget remove temporary file
    auto unlinkTemporary = [&] () {
       if (plat.fileExists (localFile.chars ())) {