diff --git a/android/src/main/java/io/invertase/firebase/admob/RNFirebaseAdMobUtils.java b/android/src/main/java/io/invertase/firebase/admob/RNFirebaseAdMobUtils.java
index 9cce8a0a..ec7b0ff1 100644
--- a/android/src/main/java/io/invertase/firebase/admob/RNFirebaseAdMobUtils.java
+++ b/android/src/main/java/io/invertase/firebase/admob/RNFirebaseAdMobUtils.java
@@ -142,6 +142,8 @@ class RNFirebaseAdMobUtils {
         return AdSize.LEADERBOARD;
       case "SMART_BANNER":
         return AdSize.SMART_BANNER;
+      case "SMART_BANNER_LANDSCAPE":
+        return AdSize.SMART_BANNER;		
     }
   }
 }
diff --git a/ios/RNFirebase/admob/RNFirebaseAdMob.m b/ios/RNFirebase/admob/RNFirebaseAdMob.m
index f0bc4487..dbee154c 100644
--- a/ios/RNFirebase/admob/RNFirebaseAdMob.m
+++ b/ios/RNFirebase/admob/RNFirebaseAdMob.m
@@ -210,6 +210,8 @@ RCT_EXPORT_METHOD(clearInterstitial:
         return kGADAdSizeLeaderboard;
     } else if ([value isEqualToString:@"SMART_BANNER"]) {
         return kGADAdSizeSmartBannerPortrait;
+    } else if ([value isEqualToString:@"SMART_BANNER_LANDSCAPE"]) {
+        return kGADAdSizeSmartBannerLandscape;
     } else {
         return kGADAdSizeBanner;
     }