diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/codegen/CodeGenerator.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/codegen/CodeGenerator.scala
index da42c5fbb994d..2cb9058249378 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/codegen/CodeGenerator.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/codegen/CodeGenerator.scala
@@ -1003,7 +1003,11 @@ object CodeGenerator extends Logging {
       }
     }.flatten
 
-    codeSizes.max
+    if (codeSizes.nonEmpty) {
+      codeSizes.max
+    } else {
+      0
+    }
   }
 
   /**