diff --git a/plugin/trino-bigquery/src/main/java/io/trino/plugin/bigquery/BigQueryResultPageSource.java b/plugin/trino-bigquery/src/main/java/io/trino/plugin/bigquery/BigQueryResultPageSource.java
index 681a891d36e0..df894a10c228 100644
--- a/plugin/trino-bigquery/src/main/java/io/trino/plugin/bigquery/BigQueryResultPageSource.java
+++ b/plugin/trino-bigquery/src/main/java/io/trino/plugin/bigquery/BigQueryResultPageSource.java
@@ -27,6 +27,7 @@
 import io.trino.spi.type.ArrayType;
 import io.trino.spi.type.DecimalType;
 import io.trino.spi.type.Decimals;
+import io.trino.spi.type.Int128;
 import io.trino.spi.type.LongTimestampWithTimeZone;
 import io.trino.spi.type.RowType;
 import io.trino.spi.type.Type;
@@ -190,6 +191,9 @@ else if (type.equals(TIME_MICROS)) {
             else if (javaType == double.class) {
                 type.writeDouble(output, ((Number) value).doubleValue());
             }
+            else if (type.getJavaType() == Int128.class) {
+                writeObject(output, type, value);
+            }
             else if (javaType == Slice.class) {
                 writeSlice(output, type, value);
             }
@@ -217,12 +221,6 @@ private static void writeSlice(BlockBuilder output, Type type, Object value)
         if (type instanceof VarcharType) {
             type.writeSlice(output, utf8Slice(((Utf8) value).toString()));
         }
-        else if (type instanceof DecimalType) {
-            verify(isLongDecimal(type), "The type should be long decimal");
-            DecimalType decimalType = (DecimalType) type;
-            BigDecimal decimal = DECIMAL_CONVERTER.convert(decimalType.getPrecision(), decimalType.getScale(), value);
-            type.writeObject(output, Decimals.encodeScaledValue(decimal, decimalType.getScale()));
-        }
         else if (type instanceof VarbinaryType) {
             if (value instanceof ByteBuffer) {
                 type.writeSlice(output, Slices.wrappedBuffer((ByteBuffer) value));
@@ -236,6 +234,19 @@ else if (type instanceof VarbinaryType) {
         }
     }
 
+    private static void writeObject(BlockBuilder output, Type type, Object value)
+    {
+        if (type instanceof DecimalType) {
+            verify(isLongDecimal(type), "The type should be long decimal");
+            DecimalType decimalType = (DecimalType) type;
+            BigDecimal decimal = DECIMAL_CONVERTER.convert(decimalType.getPrecision(), decimalType.getScale(), value);
+            type.writeObject(output, Decimals.encodeScaledValue(decimal, decimalType.getScale()));
+        }
+        else {
+            throw new TrinoException(GENERIC_INTERNAL_ERROR, "Unhandled type for Object: " + type.getTypeSignature());
+        }
+    }
+
     private void writeBlock(BlockBuilder output, Type type, Object value)
     {
         if (type instanceof ArrayType && value instanceof List<?>) {