diff --git a/src/main/java/org/folio/edge/oaipmh/MainVerticle.java b/src/main/java/org/folio/edge/oaipmh/MainVerticle.java
index 89885db..faff2a6 100644
--- a/src/main/java/org/folio/edge/oaipmh/MainVerticle.java
+++ b/src/main/java/org/folio/edge/oaipmh/MainVerticle.java
@@ -3,6 +3,7 @@
 import static org.folio.edge.core.Constants.SYS_OKAPI_URL;
 import static org.folio.edge.core.Constants.SYS_REQUEST_TIMEOUT_MS;
 
+import org.folio.edge.core.Constants;
 import org.folio.edge.core.EdgeVerticle2;
 import org.folio.edge.oaipmh.clients.aoipmh.OaiPmhOkapiClientFactory;