diff --git a/banner.go b/banner.go
index f93932a..df93c5d 100644
--- a/banner.go
+++ b/banner.go
@@ -28,7 +28,7 @@ type Banner struct {
 	// Description:
 	//   Exact width in device independent pixels (DIPS);
 	//   recommended if no format objects are specified.
-	W uint64 `json:"w,omitempty"`
+	W uint64 `json:"w"`
 
 	// Attribute:
 	//   h
@@ -37,7 +37,7 @@ type Banner struct {
 	// Description:
 	//   Exact height in device independent pixels (DIPS);
 	//   recommended if no format objects are specified.
-	H uint64 `json:"h,omitempty"`
+	H uint64 `json:"h"`
 
 	// Attribute:
 	//   wmax
diff --git a/testdata/bid-request-mobile.json b/testdata/bid-request-mobile.json
index 898d7bd..725fe35 100644
--- a/testdata/bid-request-mobile.json
+++ b/testdata/bid-request-mobile.json
@@ -32,6 +32,26 @@
 					3
 				]
 			}
+		},
+		{
+			"id": "2",
+			"bidfloor": 0.5,
+			"tagid": "agltb3B1Yi1pbmNyDQsSBFNpdGUY7fD0FAwa",
+			"instl":1,
+			"banner": {
+				"w": 0,
+				"h": 0,
+				"pos": 2,
+				"btype": [
+					4
+				],
+				"battr": [
+					14
+				],
+				"api": [
+					3
+				]
+			}
 		}
 	],
 	"app": {