diff --git a/lib/nova b/lib/nova
index 840965e..e07e61c 100644
--- a/lib/nova
+++ b/lib/nova
@@ -435,6 +435,7 @@
     # Create cache dir
     sudo mkdir -p $NOVA_AUTH_CACHE_DIR
     sudo chown `whoami` $NOVA_AUTH_CACHE_DIR
+    rm -f $NOVA_AUTH_CACHE_DIR/*
 }
 
 # install_novaclient() - Collect source and prepare