diff --git a/parquet_impl.cpp b/parquet_impl.cpp
index b5ef589..0aa323b 100644
--- a/parquet_impl.cpp
+++ b/parquet_impl.cpp
@@ -834,7 +834,6 @@ class ParquetFdwReader
         {
             MemoryContext   ccxt = CurrentMemoryContext;
             bool            error = false;
-            Datum           res;
             char            errstr[ERROR_STR_LEN];
 
             PG_TRY();