diff --git a/include/meson.build b/include/meson.build
index 3f3024b50..09707cec5 100644
--- a/include/meson.build
+++ b/include/meson.build
@@ -159,7 +159,7 @@ conf_data.set('HAVE_STRCASESTR', cc.has_function('strcasestr'))
 conf_data.set('HAVE_STRLCAT', cc.has_function('strlcat', dependencies: libbsd_dep))
 conf_data.set('HAVE_STRLCPY', cc.has_function('strlcpy', dependencies: libbsd_dep))
 conf_data.set('HAVE_STRNCASECMP', cc.has_function('strncasecmp'))
-conf_data.set('HAVE_STRNDUP', cc.has_function('strndup'))
+conf_data.set('HAVE_STRNDUP', cc.has_function('strndup') and cc.has_header_symbol('string.h', 'strndup'))
 conf_data.set('HAVE_TIMINGSAFE_MEMCMP', cc.has_function('timingsafe_memcmp'))
 conf_data.set('HAVE_VASPRINTF', cc.has_function('vasprintf'))
 conf_data.set('HAVE_VSNPRINTF', cc.has_function('vsnprintf'))