diff --git a/src/internal/trace/parser.go b/src/internal/trace/parser.go
index b091a85..8dc2930 100644
--- a/src/internal/trace/parser.go
+++ b/src/internal/trace/parser.go
@@ -1078,7 +1078,7 @@
 	EvUserTaskEnd       = 46 // end of task [timestamp, internal task id, stack]
 	EvUserRegion        = 47 // trace.WithRegion [timestamp, internal task id, mode(0:start, 1:end), stack, name string]
 	EvUserLog           = 48 // trace.Log [timestamp, internal id, key string id, stack, value string]
-	EvCPUSample         = 49 // CPU profiling sample [timestamp, stack, real timestamp, real P id (-1 when absent), goroutine id]
+	EvCPUSample         = 49 // CPU profiling sample [timestamp, real timestamp, real P id (-1 when absent), goroutine id, stack]
 	EvCount             = 50
 )
 
diff --git a/src/runtime/trace.go b/src/runtime/trace.go
index d9729cd..b55849f 100644
--- a/src/runtime/trace.go
+++ b/src/runtime/trace.go
@@ -70,7 +70,7 @@
 	traceEvUserTaskEnd       = 46 // end of a task [timestamp, internal task id, stack]
 	traceEvUserRegion        = 47 // trace.WithRegion [timestamp, internal task id, mode(0:start, 1:end), stack, name string]
 	traceEvUserLog           = 48 // trace.Log [timestamp, internal task id, key string id, stack, value string]
-	traceEvCPUSample         = 49 // CPU profiling sample [timestamp, stack, real timestamp, real P id (-1 when absent), goroutine id]
+	traceEvCPUSample         = 49 // CPU profiling sample [timestamp, real timestamp, real P id (-1 when absent), goroutine id, stack]
 	traceEvCount             = 50
 	// Byte is used but only 6 bits are available for event type.
 	// The remaining 2 bits are used to specify the number of arguments.