diff --git a/Cargo.lock b/Cargo.lock
index fb0ab95..792d55d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -997,7 +997,7 @@ checksum = "78b3ae25bc7c8c38cec158d1f2757ee79e9b3740fbc7ccf0e59e4b08d793fa89"
 
 [[package]]
 name = "local-mini-kms"
-version = "1.0.4"
+version = "1.0.5"
 dependencies = [
  "aes-gcm-stream",
  "aes-kw",
diff --git a/Cargo.toml b/Cargo.toml
index 32aff43..32081de 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "local-mini-kms"
-version = "1.0.4"
+version = "1.0.5"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
diff --git a/src/db.rs b/src/db.rs
index 081595e..4db43c2 100644
--- a/src/db.rs
+++ b/src/db.rs
@@ -24,24 +24,73 @@ pub fn open_db(db: &str) -> XResult<Connection> {
 }
 
 pub fn init_db(conn: &Connection) -> XResult<bool> {
-    let mut stmt = conn.prepare(
-        "SELECT name FROM sqlite_master WHERE type='table' AND name='keys'")?;
-    let mut rows = stmt.query(())?;
-    if rows.next()?.is_some() {
-        log::info!("Table keys exists, skip init");
-        return Ok(false);
+    if let Ok(false) = check_table_keys(conn) {
+        repair_table_keys(conn)?;
     }
 
-    let _ = conn.execute(r##"
+    Ok(true)
+}
+
+fn repair_table_keys(conn: &Connection) -> XResult<()> {
+    let field_names = list_table_fields(conn, "keys")?;
+    let field_names = field_names.iter().map(|n| n.as_str()).collect::<Vec<_>>();
+
+    if !field_names.contains(&"comment") {
+        log::info!("Repair table keys, add column comment");
+        let _ = conn.execute("ALTER TABLE keys ADD COLUMN comment TEXT", ())?;
+    }
+
+    Ok(())
+}
+
+fn list_table_fields(conn: &Connection, table: &str) -> XResult<Vec<String>> {
+    let mut stmt_query_fields = conn.prepare(&format!("pragma table_info({})", table))?;
+    let mut rows_query_field = stmt_query_fields.query(())?;
+
+    let mut field_names = vec![];
+    let mut next_query_field_opt = rows_query_field.next()?;
+    while let Some(next_query_field) = next_query_field_opt {
+        // cid|name|type|notnull|dflt_value|pk
+        // ^   ^    ^    ^       ^          ^
+        // |   |    |    |       |          [5] - Is column PK
+        // |   |    |    |       [4] Column default value
+        // |   |    |    [3] Is column not null
+        // |   |    [2] Column type
+        // |   [1] Column name
+        // [0] Column index
+        let field_name: String = next_query_field.get(1)?;
+        field_names.push(field_name.to_lowercase());
+        next_query_field_opt = rows_query_field.next()?;
+    }
+    log::trace!("Table {} fields: {:?}", table, field_names);
+    Ok(field_names)
+}
+
+fn check_table_keys(conn: &Connection) -> XResult<bool> {
+    let mut stmt =
+        conn.prepare("SELECT name FROM sqlite_master WHERE type='table' AND name='keys'")?;
+    let mut rows = stmt.query(())?;
+    if rows.next()?.is_none() {
+        log::info!("Create table keys");
+        create_table_keys(conn)?;
+        Ok(true)
+    } else {
+        Ok(false)
+    }
+}
+
+fn create_table_keys(conn: &Connection) -> XResult<()> {
+    let _ = conn.execute(
+        r##"
         CREATE TABLE keys (
             id INTEGER PRIMARY KEY,
             name  TEXT NOT NULL,
             value  TEXT,
             comment TEXT
-        )
-    "##, ())?;
-    log::info!("Table keys created");
-    Ok(true)
+        )"##,
+        (),
+    )?;
+    Ok(())
 }
 
 pub fn insert_key(conn: &Connection, key: &Key) -> XResult<()> {
@@ -49,7 +98,11 @@ pub fn insert_key(conn: &Connection, key: &Key) -> XResult<()> {
     log::debug!("insert key name={}", &key.name);
     let _ = conn.execute(
         "INSERT INTO keys (name, value, comment) VALUES (?1, ?2, ?3)",
-        (&key.name, &key.encrypted_key, key.comment.as_ref().unwrap_or(&default_comment)),
+        (
+            &key.name,
+            &key.encrypted_key,
+            key.comment.as_ref().unwrap_or(&default_comment),
+        ),
     )?;
     Ok(())
 }
@@ -90,4 +143,4 @@ pub fn find_key(conn: &Connection, name: &str) -> XResult<Option<Key>> {
         }
         Some(Err(e)) => simple_error!("Find key failed: {}", e),
     }
-}
\ No newline at end of file
+}