diff --git a/wallet-ffi/Cargo.toml b/wallet-ffi/Cargo.toml
index 693a0120..0da8a248 100644
--- a/wallet-ffi/Cargo.toml
+++ b/wallet-ffi/Cargo.toml
@@ -21,5 +21,5 @@ cbindgen = "0.29"
 tempfile = "3"
 
 [features]
-default = []
+default = ["prove"]
 prove = ["nssa/prove"]