diff --git a/gramps/plugins/gramplet/gramplet.gpr.py b/gramps/plugins/gramplet/gramplet.gpr.py
index 24954db03..95994594a 100644
--- a/gramps/plugins/gramplet/gramplet.gpr.py
+++ b/gramps/plugins/gramplet/gramplet.gpr.py
@@ -390,7 +390,7 @@ try:
         available = True
     else:
         available = False
-except ImportError:
+except (ImportError, ValueError):
     available = False
 
 if available: