diff --git a/proto/pb/sdk/sdk.pb.go b/proto/pb/sdk/sdk.pb.go
index a1289d39103..b774940a3e8 100644
--- a/proto/pb/sdk/sdk.pb.go
+++ b/proto/pb/sdk/sdk.pb.go
@@ -229,7 +229,7 @@ func (x *SignatureRequest) GetJustification() []byte {
 	return nil
 }
 
-// SignatureRespnose is an AppResponse message type for providing
+// SignatureResponse is an AppResponse message type for providing
 // a requested BLS signature over a Warp message, as defined in ACP-118:
 // https://github.com/avalanche-foundation/ACPs/tree/main/ACPs/118-warp-signature-request
 type SignatureResponse struct {
diff --git a/proto/sdk/sdk.proto b/proto/sdk/sdk.proto
index d4eea3d5d08..4e660d3c116 100644
--- a/proto/sdk/sdk.proto
+++ b/proto/sdk/sdk.proto
@@ -27,7 +27,7 @@ message SignatureRequest {
   bytes justification = 2;
 }
 
-// SignatureRespnose is an AppResponse message type for providing
+// SignatureResponse is an AppResponse message type for providing
 // a requested BLS signature over a Warp message, as defined in ACP-118:
 // https://github.com/avalanche-foundation/ACPs/tree/main/ACPs/118-warp-signature-request
 message SignatureResponse {