diff --git a/src/plugins/tracing/trace.proto b/src/plugins/tracing/trace.proto
index ee3589e8..33ff84c7 100644
--- a/src/plugins/tracing/trace.proto
+++ b/src/plugins/tracing/trace.proto
@@ -1,10 +1,10 @@
 message Trace_Event {
 	required uint64 ip = 1;
-    optional uint64 memaddr = 2;
-    optional uint32 width = 3;
-    enum AccessType {
-      READ = 1;
-      WRITE = 2;
-    }
-    optional AccessType accesstype = 4;
+	optional uint64 memaddr = 2;
+	optional uint32 width = 3;
+	enum AccessType {
+		READ = 1;
+		WRITE = 2;
+	}
+	optional AccessType accesstype = 4;
 }