diff --git a/sdk/src/signers.rs b/sdk/src/signers.rs
index 667d61acee..e99f925ed4 100644
--- a/sdk/src/signers.rs
+++ b/sdk/src/signers.rs
@@ -48,6 +48,10 @@ impl Signers for [Box<dyn Signer>] {
     default_keypairs_impl!();
 }
 
+impl Signers for Vec<Box<dyn Signer>> {
+    default_keypairs_impl!();
+}
+
 impl Signers for Vec<&dyn Signer> {
     default_keypairs_impl!();
 }