diff --git a/packages/anchor-contrib/src/utils/programs.ts b/packages/anchor-contrib/src/utils/programs.ts
index e2855a030..ca77bfb32 100644
--- a/packages/anchor-contrib/src/utils/programs.ts
+++ b/packages/anchor-contrib/src/utils/programs.ts
@@ -21,7 +21,7 @@ export const newProgram = <P>(
 ) => {
   return new Program(
     idl,
-    address,
+    address.toString(),
     makeAnchorProvider(provider)
   ) as unknown as P;
 };