diff --git a/velox/tpch/gen/dbgen/build.cpp b/velox/tpch/gen/dbgen/build.cpp
index e3fed6350301c..e27e5bdf75002 100644
--- a/velox/tpch/gen/dbgen/build.cpp
+++ b/velox/tpch/gen/dbgen/build.cpp
@@ -36,7 +36,7 @@ namespace facebook::velox::tpch::dbgen {
         1;                                                                    \
   }
 #define V_STR(avg, seed, tgt) \
-  tpch_a_rnd((int)(avg * V_STR_LOW), (int)(avg * V_STR_HGH), seed, tgt)
+  tpch_a_rnd(static_cast<int>((avg) * V_STR_LOW), static_cast<int>((avg) * V_STR_HGH), seed, tgt)
 #define TEXT(avg, seed, tgt) \
   dbg_text(tgt, static_cast<int>((avg) * V_STR_LOW), static_cast<int>((avg) * V_STR_HGH), seed)
 static void gen_phone PROTO((DSS_HUGE ind, char* target, seed_t* seed));