diff --git a/meson.build b/meson.build
index d93dbde194..c736a6f4c4 100644
--- a/meson.build
+++ b/meson.build
@@ -2193,6 +2193,7 @@ osdep_prefix = '''
   #include <stddef.h>
   #include <sys/types.h>
 
+  #include <string.h>
   #include <limits.h>
   /* Put unistd.h before time.h as that triggers localtime_r/gmtime_r
    * function availability on recentish Mingw-w64 platforms. */
@@ -2657,7 +2658,7 @@ config_host_data.set('HAVE_GETIFADDRS', cc.has_function('getifaddrs'))
 config_host_data.set('HAVE_GLIB_WITH_SLICE_ALLOCATOR', glib_has_gslice)
 config_host_data.set('HAVE_GLIB_WITH_ALIGNED_ALLOC', glib_has_aligned_alloc)
 config_host_data.set('HAVE_OPENPTY', cc.has_function('openpty', dependencies: util))
-config_host_data.set('HAVE_STRCHRNUL', cc.has_function('strchrnul'))
+config_host_data.set('HAVE_STRCHRNUL', cc.has_function('strchrnul', prefix: osdep_prefix))
 config_host_data.set('HAVE_SYSTEM_FUNCTION', cc.has_function('system', prefix: '#include <stdlib.h>'))
 if rbd.found()
   config_host_data.set('HAVE_RBD_NAMESPACE_EXISTS',