diff --git a/packages/react-native/Libraries/StyleSheet/processFilter.js b/packages/react-native/Libraries/StyleSheet/processFilter.js
index 584b28b713b..1e72cb206da 100644
--- a/packages/react-native/Libraries/StyleSheet/processFilter.js
+++ b/packages/react-native/Libraries/StyleSheet/processFilter.js
@@ -82,7 +82,7 @@ export default function processFilter(
         }
       }
     }
-  } else {
+  } else if (Array.isArray(filter)) {
     for (const filterFunction of filter) {
       const [filterName, filterValue] = Object.entries(filterFunction)[0];
       if (filterName === 'dropShadow') {
@@ -109,6 +109,8 @@ export default function processFilter(
         }
       }
     }
+  } else {
+    throw new TypeError(`${typeof filter} filter is not a string or array`);
   }
 
   return result;