diff --git a/src/dialect/hive.rs b/src/dialect/hive.rs
index 3e15d395b..c62db0d48 100644
--- a/src/dialect/hive.rs
+++ b/src/dialect/hive.rs
@@ -27,7 +27,11 @@ impl Dialect for HiveDialect {
     }
 
     fn is_identifier_start(&self, ch: char) -> bool {
-        ch.is_ascii_lowercase() || ch.is_ascii_uppercase() || ch.is_ascii_digit() || ch == '$'
+        ch.is_ascii_lowercase()
+            || ch.is_ascii_uppercase()
+            || ch.is_ascii_digit()
+            || ch == '$'
+            || ch == '_'
     }
 
     fn is_identifier_part(&self, ch: char) -> bool {