diff --git a/cockatrice/src/game/filters/filter_string.cpp b/cockatrice/src/game/filters/filter_string.cpp
index 7705ef8b0..4e965ced5 100644
--- a/cockatrice/src/game/filters/filter_string.cpp
+++ b/cockatrice/src/game/filters/filter_string.cpp
@@ -365,7 +365,7 @@ FilterString::FilterString(const QString &expr)
     };
 
     if (!search.parse(ba.data(), result)) {
-        qDebug() << "Filter string error" << _error;
+        qDebug() << "Filter string error for" << expr << ";" << _error;
         result = [](CardData) -> bool { return false; };
     }
 }