diff --git a/core/trino-spi/src/main/java/io/trino/spi/type/TrinoNumber.java b/core/trino-spi/src/main/java/io/trino/spi/type/TrinoNumber.java
index b686e0e2fed5..56d0ed7db1d9 100644
--- a/core/trino-spi/src/main/java/io/trino/spi/type/TrinoNumber.java
+++ b/core/trino-spi/src/main/java/io/trino/spi/type/TrinoNumber.java
@@ -190,6 +190,12 @@ case BigDecimalValue(BigDecimal bigDecimal) -> {
         };
     }
 
+    @Override
+    public String toString()
+    {
+        return toBigDecimal().toString();
+    }
+
     @CheckReturnValue
     private static TrinoNumber numberFromParts(short header, byte[] unscaledBytes, int unscaledBytesOffset, int unscaledBytesLength)
     {