diff --git a/src/main/java/org/prebid/server/bidder/pubmatic/PubmaticBidder.java b/src/main/java/org/prebid/server/bidder/pubmatic/PubmaticBidder.java
index 3072091d198..09e43473dfa 100644
--- a/src/main/java/org/prebid/server/bidder/pubmatic/PubmaticBidder.java
+++ b/src/main/java/org/prebid/server/bidder/pubmatic/PubmaticBidder.java
@@ -596,7 +596,7 @@ private String resolveNativeAdm(String adm, List<BidderError> bidderErrors) {
         }
 
         final JsonNode nativeNode = admNode.get("native");
-        if (!nativeNode.isMissingNode()) {
+        if (nativeNode != null && !nativeNode.isMissingNode()) {
             return nativeNode.toString();
         }
 
diff --git a/src/test/java/org/prebid/server/bidder/pubmatic/PubmaticBidderTest.java b/src/test/java/org/prebid/server/bidder/pubmatic/PubmaticBidderTest.java
index 58f5b4d5a02..b44b7d4768d 100644
--- a/src/test/java/org/prebid/server/bidder/pubmatic/PubmaticBidderTest.java
+++ b/src/test/java/org/prebid/server/bidder/pubmatic/PubmaticBidderTest.java
@@ -1316,6 +1316,28 @@ public void makeBidderResponseShouldReturnFledgeAuctionConfig() throws JsonProce
         assertThat(result.getIgi()).containsExactly(igi);
     }
 
+    @Test
+    public void makeBidderResponseShouldNotModifyAdmWhenNativeNodeIsNull() throws JsonProcessingException {
+        // given
+        final ObjectNode admNode = mapper.createObjectNode().put("otherField", "value");
+        final BidderCall<BidRequest> httpCall = givenHttpCall(
+                mapper.writeValueAsString(
+                        givenBidResponse(bidBuilder -> bidBuilder.impid("123")
+                                .adm(admNode.toString())
+                                .ext(mapper.valueToTree(
+                                        PubmaticBidExt.of(2, null, 12, null))))));
+
+        // when
+        final CompositeBidderResponse result = target.makeBidderResponse(httpCall, null);
+
+        // then
+        assertThat(result.getErrors()).isEmpty();
+        assertThat(result.getBids())
+                .extracting(BidderBid::getBid)
+                .extracting(Bid::getAdm)
+                .containsExactly(admNode.toString());
+    }
+
     @Test
     public void makeBidsShouldFail() throws JsonProcessingException {
         //given