diff --git a/modules/pubmaticBidAdapter.js b/modules/pubmaticBidAdapter.js
index 7203cee2391..eb8a082f61f 100644
--- a/modules/pubmaticBidAdapter.js
+++ b/modules/pubmaticBidAdapter.js
@@ -449,29 +449,31 @@ export const spec = {
     payload.site.domain = _getDomainFromURL(payload.site.page);
 
     // set dctr value in site.ext, if present in validBidRequests[0], else ignore
-    if (validBidRequests[0].params.hasOwnProperty('dctr')) {
-      dctr = validBidRequests[0].params.dctr;
-      if (utils.isStr(dctr) && dctr.length > 0) {
-        var arr = dctr.split('|');
-        dctr = '';
-        arr.forEach(val => {
-          dctr += (val.length > 0) ? (val.trim() + '|') : '';
-        });
-        dctrLen = dctr.length;
-        if (dctr.substring(dctrLen, dctrLen - 1) === '|') {
-          dctr = dctr.substring(0, dctrLen - 1);
+    if (dctrArr.length > 0) {
+      if (validBidRequests[0].params.hasOwnProperty('dctr')) {
+        dctr = validBidRequests[0].params.dctr;
+        if (utils.isStr(dctr) && dctr.length > 0) {
+          var arr = dctr.split('|');
+          dctr = '';
+          arr.forEach(val => {
+            dctr += (val.length > 0) ? (val.trim() + '|') : '';
+          });
+          dctrLen = dctr.length;
+          if (dctr.substring(dctrLen, dctrLen - 1) === '|') {
+            dctr = dctr.substring(0, dctrLen - 1);
+          }
+          payload.site.ext = {
+            key_val: dctr.trim()
+          }
+        } else {
+          utils.logWarn(BIDDER_CODE + ': Ignoring param : dctr with value : ' + dctr + ', expects string-value, found empty or non-string value');
         }
-        payload.site.ext = {
-          key_val: dctr.trim()
+        if (dctrArr.length > 1) {
+          utils.logWarn(BIDDER_CODE + ': dctr value found in more than 1 adunits. Value from 1st adunit will be picked. Ignoring values from subsequent adunits');
         }
       } else {
-        utils.logWarn(BIDDER_CODE + ': Ignoring param : dctr with value : ' + dctr + ', expects string-value, found empty or non-string value');
-      }
-      if (dctrArr.length > 1) {
-        utils.logWarn(BIDDER_CODE + ': dctr value found in more than 1 adunits. Value from 1st adunit will be picked. Ignoring values from subsequent adunits');
+        utils.logWarn(BIDDER_CODE + ': dctr value not found in 1st adunit, ignoring values from subsequent adunits');
       }
-    } else {
-      utils.logWarn(BIDDER_CODE + ': dctr value not found in 1st adunit, ignoring values from subsequent adunits');
     }
 
     _handleEids(payload);
diff --git a/modules/pubmaticBidAdapter.md b/modules/pubmaticBidAdapter.md
index 86d59d333f0..3f28d4586e7 100644
--- a/modules/pubmaticBidAdapter.md
+++ b/modules/pubmaticBidAdapter.md
@@ -33,8 +33,8 @@ var adUnits = [
         kadpageurl: 'www.test.com',          // optional							
         gender: 'M',                         // optional
         kadfloor: '0.50',                    // optional
-        currency: 'AUD'                      // optional
-        dctr: 'key1=123|key2=345'            // optional
+        currency: 'AUD'                      // optional (Value configured only in the 1st adunit will be passed on. < br/> Values if present in subsequent adunits, will be ignored.)
+        dctr: 'key1=123|key2=345'            // optional (Value configured only in the 1st adunit will be passed on. < br/> Values if present in subsequent adunits, will be ignored.)
       }
     }]
 }];