diff --git a/osi_hostvehicledata.proto b/osi_hostvehicledata.proto
index 026de2a7e..2debd446b 100644
--- a/osi_hostvehicledata.proto
+++ b/osi_hostvehicledata.proto
@@ -133,7 +133,7 @@ message HostVehicleData
             OPERATING_STATE_SLEEP = 2;
 
             // Cabin lights and entertainment are off. The vehicle can not be driven.
-            // Some ECUs are still operating and not in their minimum electrical sate.
+            // Some ECUs are still operating and not in their minimum electrical state.
             // Usually the driver has left (and closed) the vehicle recently.
             //
             OPERATING_STATE_STANDBY = 3;
diff --git a/osi_trafficsign.proto b/osi_trafficsign.proto
index 5b15bbcee..7a582070a 100644
--- a/osi_trafficsign.proto
+++ b/osi_trafficsign.proto
@@ -5646,7 +5646,7 @@ message TrafficSign
             // directions use \c #TYPE_ARROW. Supplementary signs constraint to
             // one type of actors use \c #TYPE_CONSTRAINED_TO. Supplementary
             // signs that will exclude one type of actors use \c #TYPE_EXCEPT.
-            // If supplementary signs combine contraints, restrictions, or plain
+            // If supplementary signs combine constraints, restrictions, or plain
             // text, \c Type is used in descending order in the following
             // sequence: \c #TYPE_EXCEPT, \c #TYPE_CONSTRAINED_TO, \c
             // #TYPE_ARROW, \c #TYPE_TIME, \c #TYPE_SPACE, \c #TYPE_TEXT.