https://bugs.gentoo.org/895264
https://github.com/mawww/kakoune/issues/4854

diff --git a/src/keys.hh b/src/keys.hh
index 0af1a5a8..ccafe336 100644
--- a/src/keys.hh
+++ b/src/keys.hh
@@ -9,6 +9,8 @@
 #include "unicode.hh"
 #include "vector.hh"

+#include <cstdint>
+
 namespace Kakoune
 {
     
diff --git a/src/ranked_match.hh b/src/ranked_match.hh
index ec7fe626..62d6b8f0 100644
--- a/src/ranked_match.hh
+++ b/src/ranked_match.hh
@@ -4,6 +4,8 @@
 #include "string.hh"
 #include "meta.hh"

+#include <cstdint>
+
 namespace Kakoune
 {