diff --git a/api/shim/shim.proto b/api/shim/shim.proto
index fb34ca5..7414e20 100644
--- a/api/shim/shim.proto
+++ b/api/shim/shim.proto
@@ -6,14 +6,14 @@ import "google/protobuf/empty.proto";
 import "gogoproto/gogo.proto";
 
 service ShimService {
-    rpc Create(CreateRequest) returns (google.protobuf.Empty);
-    rpc Exec(ExecRequest) returns (google.protobuf.Empty);
-    rpc State(StateRequest) returns (StateResponse);
-    rpc Pty(PtyRequest) returns (google.protobuf.Empty);
+	rpc Create(CreateRequest) returns (google.protobuf.Empty);
+	rpc Exec(ExecRequest) returns (google.protobuf.Empty);
+	rpc State(StateRequest) returns (StateResponse);
+	rpc Pty(PtyRequest) returns (google.protobuf.Empty);
 }
 
 message PtyRequest {
-    string id = 1 [(gogoproto.customname) = "ID"];
-    uint32 width = 2;
-    uint32 height = 3;
+	string id = 1 [(gogoproto.customname) = "ID"];
+	uint32 width = 2;
+	uint32 height = 3;
 }