diff --git a/firmware/application/de_bruijn.hpp b/firmware/application/de_bruijn.hpp
index daed006a..cc4c5b3e 100644
--- a/firmware/application/de_bruijn.hpp
+++ b/firmware/application/de_bruijn.hpp
@@ -21,6 +21,7 @@
  */
 
 #include <string>
+#include <cstdint>
 
 #ifndef __DE_BRUIJN_H__
 #define __DE_BRUIJN_H__
diff --git a/firmware/application/protocols/aprs.cpp b/firmware/application/protocols/aprs.cpp
index 027f34d3..4317e44c 100644
--- a/firmware/application/protocols/aprs.cpp
+++ b/firmware/application/protocols/aprs.cpp
@@ -20,6 +20,8 @@
  * Boston, MA 02110-1301, USA.
  */
 
+#include <cstdint>
+
 #include "aprs.hpp"
 #include "ax25.hpp"
 
diff --git a/firmware/common/adsb_frame.hpp b/firmware/common/adsb_frame.hpp
index 7bdfb1fb..83778ac9 100644
--- a/firmware/common/adsb_frame.hpp
+++ b/firmware/common/adsb_frame.hpp
@@ -25,6 +25,7 @@
 
 #include <cstring>
 #include <string>
+#include <cstdint>
 
 namespace adsb {