diff --git a/openbas-api/src/main/java/io/openbas/migration/V3_45__Add_indexes_scenario_exercise_latency.java b/openbas-api/src/main/java/io/openbas/migration/V3_45__Add_indexes_scenario_exercise_latency.java
new file mode 100644
index 0000000000..2821553dd2
--- /dev/null
+++ b/openbas-api/src/main/java/io/openbas/migration/V3_45__Add_indexes_scenario_exercise_latency.java
@@ -0,0 +1,18 @@
+package io.openbas.migration;
+
+import org.flywaydb.core.api.migration.BaseJavaMigration;
+import org.flywaydb.core.api.migration.Context;
+import org.springframework.stereotype.Component;
+
+import java.sql.Connection;
+import java.sql.Statement;
+
+@Component
+public class V3_45__Add_indexes_scenario_exercise_latency extends BaseJavaMigration {
+    @Override
+    public void migrate(Context context) throws Exception {
+        Connection connection = context.getConnection();
+        Statement select = connection.createStatement();
+        select.execute("CREATE INDEX IF NOT EXISTS idx_inject_expectation_inject_id ON injects_expectations(inject_id);");
+    }
+}