diff --git a/htdocs/install/mysql/migration/3.8.0-3.9.0.sql b/htdocs/install/mysql/migration/3.8.0-3.9.0.sql
index dac62a2a4b8..4f1e308b370 100755
--- a/htdocs/install/mysql/migration/3.8.0-3.9.0.sql
+++ b/htdocs/install/mysql/migration/3.8.0-3.9.0.sql
@@ -247,7 +247,7 @@ ALTER TABLE llx_budget_lines ADD UNIQUE INDEX uk_budget_lines (fk_budget, fk_pro
 -- MYSQL V4 DELETE llx_budget_lines FROM llx_budget_lines LEFT JOIN llx_budget ON llx_budget.rowid = llx_budget_lines.fk_budget WHERE llx_budget_lines.rowid IS NULL;
 -- POSTGRESQL V8 DELETE FROM llx_budget_lines USING llx_budget WHERE llx_budget_lines.fk_budget NOT IN (SELECT llx_budget.rowid FROM llx_budget);
 
-ALTER TABLE llx_budget_lines ADD INDEX idx_budget_lines (fk_projet);
+ALTER TABLE llx_budget_lines ADD INDEX idx_budget_lines (fk_project);
 ALTER TABLE llx_budget_lines ADD CONSTRAINT fk_budget_lines_budget FOREIGN KEY (fk_budget) REFERENCES llx_budget (rowid);