diff --git a/native/utils/thumbhash-module.js b/native/utils/thumbhash-module.js
--- a/native/utils/thumbhash-module.js
+++ b/native/utils/thumbhash-module.js
@@ -7,12 +7,18 @@
   +generateThumbHash: (photoURI: string) => Promise<string>,
 } = requireNativeModule('Thumbhash');
 
+const newLineRegex = /\n/g;
 async function generateThumbHash(photoURI: string): Promise<string> {
   invariant(
     platformUtilsModule.generateThumbHash,
     'generateThumbHash() unavailable. Check if Thumbhash expo-module is autolinked',
   );
-  return await platformUtilsModule.generateThumbHash(photoURI);
+
+  const rawThumbHash = await platformUtilsModule.generateThumbHash(photoURI);
+
+  // Sometimes native base64 modules encode the string with newlines,
+  // which breaks the thumbhash format
+  return rawThumbHash.replace(newLineRegex, '');
 }
 
 export { generateThumbHash };