diff --git a/rmw/include/rmw/types.h b/rmw/include/rmw/types.h
index 30c9b443..987ae7a2 100644
--- a/rmw/include/rmw/types.h
+++ b/rmw/include/rmw/types.h
@@ -585,7 +585,7 @@ typedef struct RMW_PUBLIC_TYPE rmw_qos_profile_s
   struct rmw_time_s deadline;
   /// The age at which messages are considered expired and no longer valid
   /**
-    * RMW_DURATION_UNSPEFICIED will use the RMW implementation's default value,
+    * RMW_DURATION_UNSPECIFIED will use the RMW implementation's default value,
     *   which may or may not be infinite.
     * RMW_DURATION_INFINITE explicitly states that messages do not expire.
     */
@@ -594,7 +594,7 @@ typedef struct RMW_PUBLIC_TYPE rmw_qos_profile_s
   enum rmw_qos_liveliness_policy_e liveliness;
   /// The time within which the RMW node or publisher must show that it is alive
   /**
-    * RMW_DURATION_UNSPEFICIED will use the RMW implementation's default value,
+    * RMW_DURATION_UNSPECIFIED will use the RMW implementation's default value,
     *   which may or may not be infinite.
     * RMW_DURATION_INFINITE explicitly states that liveliness is not enforced.
     */