diff --git a/src/servers/src/otlp.rs b/src/servers/src/otlp.rs
index 8586d79f779c..3acfaf0a881b 100644
--- a/src/servers/src/otlp.rs
+++ b/src/servers/src/otlp.rs
@@ -232,7 +232,7 @@ fn encode_sum(
     Ok(())
 }
 
-const HISTOGRAM_LE_COLUMN: &str = "greptime_le";
+const HISTOGRAM_LE_COLUMN: &str = "le";
 
 /// Encode histogram data. This function returns 3 insert requests for 3 tables.
 ///
diff --git a/tests-integration/src/otlp.rs b/tests-integration/src/otlp.rs
index 71a85d68606a..942fad14a551 100644
--- a/tests-integration/src/otlp.rs
+++ b/tests-integration/src/otlp.rs
@@ -92,7 +92,7 @@ mod test {
 
         let mut output = instance
             .do_query(
-                "SELECT greptime_le, greptime_value FROM my_test_histo_bucket order by greptime_le",
+                "SELECT le, greptime_value FROM my_test_histo_bucket order by le",
                 ctx.clone(),
             )
             .await;
@@ -101,17 +101,16 @@ mod test {
             unreachable!()
         };
         let recordbatches = RecordBatches::try_collect(stream).await.unwrap();
-        dbg!(&recordbatches);
         assert_eq!(
             recordbatches.pretty_print().unwrap(),
             "\
-+-------------+----------------+
-| greptime_le | greptime_value |
-+-------------+----------------+
-| 1           | 1.0            |
-| 5           | 3.0            |
-| inf         | 4.0            |
-+-------------+----------------+",
++-----+----------------+
+| le  | greptime_value |
++-----+----------------+
+| 1   | 1.0            |
+| 5   | 3.0            |
+| inf | 4.0            |
++-----+----------------+",
         );
 
         let mut output = instance