diff --git a/src/systemd/sd-login.h b/src/systemd/sd-login.h
index 87ebafb2644..c539dd80054 100644
--- a/src/systemd/sd-login.h
+++ b/src/systemd/sd-login.h
@@ -178,7 +178,7 @@ int sd_seat_can_tty(const char *seat);
 int sd_seat_can_graphical(const char *seat);
 
 /* Return the class of machine */
-int sd_machine_get_class(const char *machine, char **class);
+int sd_machine_get_class(const char *machine, char **clazz);
 
 /* Get all seats, store in *seats. Returns the number of seats. If
  * seats is NULL only returns number of seats. */
diff --git a/src/systemd/sd-resolve.h b/src/systemd/sd-resolve.h
index 3c1d4823742..a02be7df4ef 100644
--- a/src/systemd/sd-resolve.h
+++ b/src/systemd/sd-resolve.h
@@ -103,13 +103,13 @@ int sd_resolve_getnameinfo_done(sd_resolve_query* q, char **ret_host, char **ret
  * compatible with the ones of libc's res_query(3). The function returns a new
  * query object. When the query is completed you may retrieve the results using
  * sd_resolve_res_done().  */
-int sd_resolve_res_query(sd_resolve *resolve, sd_resolve_query **q, const char *dname, int class, int type);
+int sd_resolve_res_query(sd_resolve *resolve, sd_resolve_query **q, const char *dname, int clazz, int type);
 
 /** Issue an resolver query on the specified session. The arguments are
  * compatible with the ones of libc's res_search(3). The function returns a new
  * query object. When the query is completed you may retrieve the results using
  * sd_resolve_res_done().  */
-int sd_resolve_res_search(sd_resolve *resolve, sd_resolve_query **q, const char *dname, int class, int type);
+int sd_resolve_res_search(sd_resolve *resolve, sd_resolve_query **q, const char *dname, int clazz, int type);
 
 /** Retrieve the results of a preceding sd_resolve_res_query() or
  * resolve_res_search call.  The query object q is destroyed by this