diff --git a/src/main/java/org/prebid/server/bidder/smarthub/SmarthubBidder.java b/src/main/java/org/prebid/server/bidder/smarthub/SmarthubBidder.java
index ae00fa4675e..73df9290df2 100644
--- a/src/main/java/org/prebid/server/bidder/smarthub/SmarthubBidder.java
+++ b/src/main/java/org/prebid/server/bidder/smarthub/SmarthubBidder.java
@@ -11,6 +11,7 @@
 import io.vertx.core.MultiMap;
 import io.vertx.core.http.HttpMethod;
 import org.apache.commons.collections4.CollectionUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.prebid.server.bidder.Bidder;
 import org.prebid.server.bidder.model.BidderBid;
 import org.prebid.server.bidder.model.BidderCall;
@@ -67,7 +68,7 @@ private MultiMap resolveHeaders() {
     }
 
     private String buildEndpointUrl(ExtImpSmarthub extImpSmarthub) {
-        return endpointTemplate.replace("{{Host}}", extImpSmarthub.getPartnerName())
+        return endpointTemplate.replace("{{Host}}", StringUtils.defaultString(extImpSmarthub.getPartnerName()))
                 .replace("{{AccountID}}", extImpSmarthub.getSeat())
                 .replace("{{SourceId}}", extImpSmarthub.getToken());
     }
diff --git a/src/main/resources/static/bidder-params/smarthub.json b/src/main/resources/static/bidder-params/smarthub.json
index 97fe7ecc237..1a68bf5cfc3 100644
--- a/src/main/resources/static/bidder-params/smarthub.json
+++ b/src/main/resources/static/bidder-params/smarthub.json
@@ -6,8 +6,7 @@
   "properties": {
     "partnerName": {
       "type": "string",
-      "description": "Attekmi (formerly SmartHub) unique partner name",
-      "minLength": 1
+      "description": "Attekmi (formerly SmartHub) unique partner name"
     },
     "seat": {
       "type": "string",
@@ -21,7 +20,6 @@
     }
   },
   "required": [
-    "partnerName",
     "seat",
     "token"
   ]