diff --git a/tests-fuzz/README.md b/tests-fuzz/README.md
index 99786c5d4201..ac357f6cc783 100644
--- a/tests-fuzz/README.md
+++ b/tests-fuzz/README.md
@@ -14,6 +14,14 @@ Set the GreptimeDB MySQL address.
 ```
 GT_MYSQL_ADDR = localhost:4002
 ```
+and http address:
+```
+GT_HTTP_ADDR=localhost:4000
+```
+and fuzz build path when compiling the fuzzer using `cargo fuzz`(if you want to keep the build dir  clean):
+```
+CARGO_TARGET_DIR="fuzz_build"
+```
 
 ### For unstable fuzz tests
 Set the binary path of the GreptimeDB:
diff --git a/tests-fuzz/src/ir.rs b/tests-fuzz/src/ir.rs
index 3e6af87002f0..a77ba7ba17c5 100644
--- a/tests-fuzz/src/ir.rs
+++ b/tests-fuzz/src/ir.rs
@@ -24,7 +24,7 @@ use std::collections::HashMap;
 use std::sync::{Arc, Mutex};
 use std::time::Duration;
 
-pub use alter_expr::{AlterTableExpr, AlterTableOption, AlterTableOperation};
+pub use alter_expr::{AlterTableExpr, AlterTableOperation, AlterTableOption};
 use common_time::timestamp::TimeUnit;
 use common_time::{Date, DateTime, Timestamp};
 pub use create_expr::{CreateDatabaseExpr, CreateTableExpr};
diff --git a/tests-fuzz/targets/fuzz_concurr_alter_table.rs b/tests-fuzz/targets/fuzz_concurr_alter_table.rs
index 626a9afe573f..2362867ec73b 100644
--- a/tests-fuzz/targets/fuzz_concurr_alter_table.rs
+++ b/tests-fuzz/targets/fuzz_concurr_alter_table.rs
@@ -139,7 +139,7 @@ async fn unstable_execute_parallel_alter_table(ctx: FuzzContext, input: FuzzInpu
     let mut action = 0;
     while action < input.actions {
         let expr = generate_alter_table_add_column_expr(table_ctx.clone(), &mut rng).unwrap();
-        if let AlterTableOperation::AddColumn { column, .. } = &expr.alter_options {
+        if let AlterTableOperation::AddColumn { column, .. } = &expr.alter_kinds {
             if used_column_names.contains(&column.name) {
                 info!("Column name already used: {}, retrying", column.name.value);
                 continue;
@@ -149,7 +149,7 @@ async fn unstable_execute_parallel_alter_table(ctx: FuzzContext, input: FuzzInpu
         }
         let translator = AlterTableExprTranslator;
         let sql = translator.translate(&expr)?;
-        if let AlterTableOperation::AddColumn { .. } = expr.alter_options {
+        if let AlterTableOperation::AddColumn { .. } = expr.alter_kinds {
             // Applies changes
             after_all_alter_table_ctx = Arc::new(
                 Arc::unwrap_or_clone(after_all_alter_table_ctx)