diff --git a/config.h.meson b/config.h.meson
index a2874f7703..0514418138 100644
--- a/config.h.meson
+++ b/config.h.meson
@@ -249,9 +249,6 @@
 /* Define to 1 if you need to in order for `stat' and other things to work. */
 #mesondefine _POSIX_SOURCE
 
-/* Define to `int' if <sys/types.h> does not define. */
-#mesondefine pid_t
-
 #mesondefine HAVE_PIDFD_OPEN
 #mesondefine HAVE_PIDFD_SEND_SIGNAL
 #mesondefine HAVE_RT_SIGQUEUEINFO
diff --git a/meson.build b/meson.build
index 095b2689ad..14046f5a55 100644
--- a/meson.build
+++ b/meson.build
@@ -137,10 +137,6 @@ config_h.set('SIZEOF_INO_T', cc.sizeof('ino_t', prefix : '#include <sys/types.h>
 config_h.set('SIZEOF_TIME_T', cc.sizeof('time_t', prefix : '#include <sys/time.h>'))
 config_h.set('SIZEOF_RLIM_T', cc.sizeof('rlim_t', prefix : '#include <sys/resource.h>'))
 
-if not cc.has_type('pid_t', prefix: '#include <sys/types.h>')
-  config_h.set('pid_t', 'int')
-endif
-
 # compiler flags
 common_flags = []
 common_ldflags = []