diff --git a/src/main/java/org/prebid/server/bidder/adkernel/AdkernelBidder.java b/src/main/java/org/prebid/server/bidder/adkernel/AdkernelBidder.java
index bf99f2b1a49..d75b2688cd6 100644
--- a/src/main/java/org/prebid/server/bidder/adkernel/AdkernelBidder.java
+++ b/src/main/java/org/prebid/server/bidder/adkernel/AdkernelBidder.java
@@ -42,6 +42,7 @@ public class AdkernelBidder implements Bidder<BidRequest> {
             new TypeReference<>() {
             };
 
+    private static final String ZONE_ID_MACRO = "ZoneId";
     private static final String MF_SUFFIX = "__mf";
     private static final String MF_SUFFIX_BANNER = "b" + MF_SUFFIX;
     private static final String MF_SUFFIX_VIDEO = "v" + MF_SUFFIX;
@@ -184,7 +185,7 @@ private HttpRequest<BidRequest> createHttpRequest(Map.Entry<ExtImpAdkernel, List
                                                       App app) {
 
         final ExtImpAdkernel impExt = extAndImp.getKey();
-        final String uri = endpoint.replaceMacro("ZoneId", Objects.toString(impExt.getZoneId())).expand();
+        final String uri = endpoint.replaceMacro(ZONE_ID_MACRO, Objects.toString(impExt.getZoneId())).expand();
 
         final MultiMap headers = HttpUtil.headers()
                 .add(HttpUtil.X_OPENRTB_VERSION_HEADER, "2.5");
diff --git a/src/main/java/org/prebid/server/bidder/tappx/TappxBidder.java b/src/main/java/org/prebid/server/bidder/tappx/TappxBidder.java
index 70ea2a3e074..ca8c7544664 100644
--- a/src/main/java/org/prebid/server/bidder/tappx/TappxBidder.java
+++ b/src/main/java/org/prebid/server/bidder/tappx/TappxBidder.java
@@ -6,6 +6,7 @@
 import com.iab.openrtb.response.BidResponse;
 import com.iab.openrtb.response.SeatBid;
 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;
@@ -94,7 +95,11 @@ private String resolveUrl(ExtImpTappx extImpTappx, Integer test) {
 
         return endpoint
                 .replaceMacro(SUBDOMAIN_MACRO, subdomain)
-                .replaceMacro(PATH_MACRO, isNewEndpoint ? List.of("rtb") : List.of("rtb", "v2", subdomainPart))
+                .replaceMacro(
+                        PATH_MACRO,
+                        isNewEndpoint
+                                ? List.of("rtb", StringUtils.EMPTY)
+                                : List.of("rtb", "v2", subdomainPart))
                 .addQueryParam("tappxkey", extImpTappx.getTappxkey())
                 .addQueryParam("v", VERSION)
                 .addQueryParam("type_cnn", TYPE_CNN)
diff --git a/src/main/resources/bidder-config/adkernel.yaml b/src/main/resources/bidder-config/adkernel.yaml
index 7b642381bad..f96dce0af52 100644
--- a/src/main/resources/bidder-config/adkernel.yaml
+++ b/src/main/resources/bidder-config/adkernel.yaml
@@ -1,6 +1,6 @@
 adapters:
   adkernel:
-    endpoint: http://pbs.adksrv.com/hb?zone={Zone}
+    endpoint: http://pbs.adksrv.com/hb?zone={ZoneId}
     endpoint-compression: gzip
     aliases:
       rxnetwork: ~
diff --git a/src/test/java/org/prebid/server/bidder/tappx/TappxBidderTest.java b/src/test/java/org/prebid/server/bidder/tappx/TappxBidderTest.java
index c459d8f240d..1ed30a920de 100644
--- a/src/test/java/org/prebid/server/bidder/tappx/TappxBidderTest.java
+++ b/src/test/java/org/prebid/server/bidder/tappx/TappxBidderTest.java
@@ -190,7 +190,7 @@ public void makeHttpRequestShouldBuildCorrectUriWithEndPointParameterIfMatched()
         // then
         assertThat(result.getErrors()).isEmpty();
         final String expectedUri =
-                "https://zz855226test.pub.domain/rtb?tappxkey=tappxkey&v=1.6&type_cnn=prebid";
+                "https://zz855226test.pub.domain/rtb/?tappxkey=tappxkey&v=1.6&type_cnn=prebid";
         assertThat(result.getValue()).hasSize(1)
                 .allSatisfy(httpRequest -> {
                     assertThat(httpRequest.getUri()).isEqualTo(expectedUri);