diff --git a/src/scan.cpp b/src/scan.cpp
--- a/src/scan.cpp
+++ b/src/scan.cpp
@@ -146,6 +146,7 @@
                 //something went wrong, we couldn't find the folder we were expecting
                 qWarning() << "Didn't find " << path << " in the cache!\n";
                 it.remove();
+                emit aboutToEmptyCache();
                 delete folder;
                 break; //do a full scan
             }