diff --git a/src/cmd/joinp.rs b/src/cmd/joinp.rs
index d89db91cc..b9153915e 100644
--- a/src/cmd/joinp.rs
+++ b/src/cmd/joinp.rs
@@ -458,6 +458,7 @@ impl JoinStruct {
             .with_time_format(self.time_format)
             .with_float_precision(self.float_precision)
             .with_null_value(self.null_value)
+            .include_bom(util::get_envvar_flag("QSV_OUTPUT_BOM"))
             .finish(&mut results_df)?;
 
         compress_output_if_needed(self.output)?;
diff --git a/src/cmd/sqlp.rs b/src/cmd/sqlp.rs
index d5fe14f15..a0446aa2d 100644
--- a/src/cmd/sqlp.rs
+++ b/src/cmd/sqlp.rs
@@ -280,6 +280,7 @@ impl OutputMode {
                     .with_time_format(args.flag_time_format)
                     .with_float_precision(args.flag_float_precision)
                     .with_null_value(args.flag_wnull_value)
+                    .include_bom(util::get_envvar_flag("QSV_OUTPUT_BOM"))
                     .finish(&mut df),
                 OutputMode::Json => JsonWriter::new(&mut w).finish(&mut df),
                 OutputMode::Parquet => {