diff --git a/modules/ixBidAdapter.js b/modules/ixBidAdapter.js
index 48a2e741c5a..699209a12e9 100644
--- a/modules/ixBidAdapter.js
+++ b/modules/ixBidAdapter.js
@@ -511,7 +511,8 @@ function buildIXDiag(validBidRequests) {
     nu: 0,
     ou: 0,
     allU: 0,
-    ren: false
+    ren: false,
+    version: '$prebid.version$'
   };
 
   // create ad unit map and collect the required diag properties
diff --git a/test/spec/modules/ixBidAdapter_spec.js b/test/spec/modules/ixBidAdapter_spec.js
index fca3f8f992e..354898207a5 100644
--- a/test/spec/modules/ixBidAdapter_spec.js
+++ b/test/spec/modules/ixBidAdapter_spec.js
@@ -1496,6 +1496,7 @@ describe('IndexexchangeAdapter', function () {
         expect(diagObj.ren).to.equal(false);
         expect(diagObj.mfu).to.equal(1);
         expect(diagObj.allU).to.equal(1);
+        expect(diagObj.version).to.equal('$prebid.version$');
       });
     });
   });