diff --git a/src/main/java/net/snowflake/client/jdbc/ArrowResultChunk.java b/src/main/java/net/snowflake/client/jdbc/ArrowResultChunk.java
index 103f90555..3516966e6 100644
--- a/src/main/java/net/snowflake/client/jdbc/ArrowResultChunk.java
+++ b/src/main/java/net/snowflake/client/jdbc/ArrowResultChunk.java
@@ -212,7 +212,11 @@ private static List<ArrowVectorConverter> initConverters(
             break;
 
           case MAP:
-            converters.add(new MapConverter((MapVector) vector, i, context));
+            if (vector instanceof MapVector) {
+              converters.add(new MapConverter((MapVector) vector, i, context));
+            } else {
+              converters.add(new VarCharConverter(vector, i, context));
+            }
             break;
 
           case VECTOR: