diff --git a/osi_trafficsign.proto b/osi_trafficsign.proto
index 4e78ef130..3d809858f 100644
--- a/osi_trafficsign.proto
+++ b/osi_trafficsign.proto
@@ -1333,7 +1333,7 @@ message TrafficSign
                 // </tr>
                 // </table>
                 //
-                // Left: \c #TYPE_PRESCRIBED_LEFT_TURN_AND_RIGHT_TURN
+                // Left: \c #TYPE_PRESCRIBED_LEFT_TURN_AND_STRAIGHT
                 //
                 // As symbolic road marking \c
                 // RoadMarking::Classification::TYPE_SYMBOLIC_TRAFFIC_SIGN