diff --git a/cmake/ConfigureChecks.cmake b/cmake/ConfigureChecks.cmake
index e1540653..01c80437 100644
--- a/cmake/ConfigureChecks.cmake
+++ b/cmake/ConfigureChecks.cmake
@@ -62,8 +62,6 @@ check_symbol_exists(getrandom    "sys/random.h"             HAVE_GETRANDOM)
 check_symbol_exists(getrlimit    "sys/resource.h;sys/time.h" HAVE_GETRLIMIT)
 check_symbol_exists(prlimit      "sys/resource.h;sys/time.h" HAVE_PRLIMIT)
 check_symbol_exists(setrlimit    "sys/resource.h;sys/time.h" HAVE_SETRLIMIT)
-check_symbol_exists(vasprintf    "stdio.h"                   HAVE_VASPRINTF)
-check_symbol_exists(vsnprintf    "stdio.h"                   HAVE_VSNPRINTF)
 check_symbol_exists(MSG_NOSIGNAL "sys/socket.h"              HAVE_DECL_MSG_NOSIGNAL)
 check_symbol_exists(environ      "unistd.h"                  HAVE_DECL_ENVIRON)
 check_symbol_exists(LOG_PERROR   "syslog.h"                  HAVE_DECL_LOG_PERROR)
diff --git a/cmake/config.h.cmake b/cmake/config.h.cmake
index a0acc5b7..f5a1659b 100644
--- a/cmake/config.h.cmake
+++ b/cmake/config.h.cmake
@@ -210,16 +210,12 @@
 #cmakedefine HAVE_SETRLIMIT 1
 #cmakedefine HAVE_UNIX_FD_PASSING 1
 #cmakedefine HAVE_SYSTEMD
-#cmakedefine HAVE_VASPRINTF 1
-#cmakedefine HAVE_VSNPRINTF 1
 
 /* Define to use epoll(4) on Linux */
 #cmakedefine DBUS_HAVE_LINUX_EPOLL 1
 
 /* Use the gcc __sync extension */
 #cmakedefine01 DBUS_USE_SYNC
-#cmakedefine HAVE_VASPRINTF 1
-#cmakedefine HAVE_VSNPRINTF 1
 
 #cmakedefine HAVE_SETRESUID 1
 #cmakedefine HAVE_GETRESUID 1