diff --git a/lib/ransack/nodes/condition.rb b/lib/ransack/nodes/condition.rb
index af69c037..248638d2 100644
--- a/lib/ransack/nodes/condition.rb
+++ b/lib/ransack/nodes/condition.rb
@@ -339,7 +339,7 @@ def in_predicate?(predicate)
       end
 
       def casted_array?(predicate)
-        predicate.value.is_a?(Array) && predicate.is_a?(Arel::Nodes::Casted)
+        predicate.is_a?(Arel::Nodes::Casted) && predicate.value.is_a?(Array)
       end
 
       def format_values_for(predicate)