diff --git a/src/useSourcify.ts b/src/useSourcify.ts
index 40c0bea..ac0cbde 100644
--- a/src/useSourcify.ts
+++ b/src/useSourcify.ts
@@ -88,7 +88,7 @@ export const useContract = (
     }
 
     const readContent = async () => {
-      const normalizedFilename = filename.replaceAll("@", "_");
+      const normalizedFilename = filename.replaceAll(/[@:]/g, "_");
       const url = sourcifySourceFile(
         checksummedAddress,
         networkId,