diff --git a/modules/adagioBidAdapter.js b/modules/adagioBidAdapter.js
index e59fd341bae..8dcd95f933b 100644
--- a/modules/adagioBidAdapter.js
+++ b/modules/adagioBidAdapter.js
@@ -59,7 +59,7 @@ export const ORTB_VIDEO_PARAMS = {
   'w': (value) => isInteger(value),
   'h': (value) => isInteger(value),
   'startdelay': (value) => isInteger(value),
-  'placement': (value) => Array.isArray(value) && value.every(v => [1, 2, 3, 4, 5].indexOf(v) !== -1),
+  'placement': (value) => [1, 2, 3, 4, 5].indexOf(value) !== -1,
   'linearity': (value) => [1, 2].indexOf(value) !== -1,
   'skip': (value) => [0, 1].indexOf(value) !== -1,
   'skipmin': (value) => isInteger(value),
diff --git a/test/spec/modules/adagioBidAdapter_spec.js b/test/spec/modules/adagioBidAdapter_spec.js
index e2fde8ff2e3..436d481c4a1 100644
--- a/test/spec/modules/adagioBidAdapter_spec.js
+++ b/test/spec/modules/adagioBidAdapter_spec.js
@@ -400,7 +400,7 @@ describe('Adagio bid adapter', () => {
             skipafter: 4,
             minduration: 10,
             maxduration: 30,
-            placement: [3],
+            placement: 3,
             protocols: [8]
           }
         }).build();
@@ -415,7 +415,7 @@ describe('Adagio bid adapter', () => {
           skipafter: 4,
           minduration: 10,
           maxduration: 30,
-          placement: [3],
+          placement: 3,
           protocols: [8],
           w: 300,
           h: 250