diff --git a/modules/synacormediaBidAdapter.js b/modules/synacormediaBidAdapter.js
index 3412d2fd417..3879d676d99 100644
--- a/modules/synacormediaBidAdapter.js
+++ b/modules/synacormediaBidAdapter.js
@@ -45,12 +45,9 @@ export const spec = {
       imp: []
     };
 
-    if (bidderRequest.bids != undefined && bidderRequest.bids[0] != undefined) {
-      const schain = bidderRequest.bids[0].schain;
-      if (schain) {
-        openRtbBidRequest.source = {};
-        openRtbBidRequest.source.ext = { schain };
-      }
+    const schain = validBidReqs[0].schain;
+    if (schain) {
+      openRtbBidRequest.source = { ext: { schain } };
     }
 
     let seatId = null;
@@ -67,7 +64,7 @@ export const spec = {
       if (isNaN(bidFloor)) {
         logWarn(`Synacormedia: there is an invalid bid floor: ${bid.params.bidfloor}`);
       }
-      let pos = parseInt(bid.params.pos);
+      let pos = parseInt(bid.params.pos, 10);
       if (isNaN(pos)) {
         logWarn(`Synacormedia: there is an invalid POS: ${bid.params.pos}`);
         pos = 0;
diff --git a/test/spec/modules/synacormediaBidAdapter_spec.js b/test/spec/modules/synacormediaBidAdapter_spec.js
index 41194cbdf51..4f59fdd19e0 100644
--- a/test/spec/modules/synacormediaBidAdapter_spec.js
+++ b/test/spec/modules/synacormediaBidAdapter_spec.js
@@ -562,7 +562,18 @@ describe('synacormediaBidAdapter ', function () {
       src: 'client',
       bidRequestsCount: 1,
       bidderRequestsCount: 1,
-      bidderWinsCount: 0
+      bidderWinsCount: 0,
+      schain: {
+        ver: '1.0',
+        complete: 1,
+        nodes: [
+          {
+            asi: 'indirectseller.com',
+            sid: '00001',
+            hp: 1
+          }
+        ]
+      }
     };
     let bidderRequest = {
       refererInfo: {