Include stdint.h
diff --git a/include/libbb.h b/include/libbb.h
index f1f4f5c..88f43d0 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -30,6 +30,7 @@
 #include <sys/types.h>
 #include <regex.h>
 #include <termios.h>
+#include <stdint.h>
 
 #include <netdb.h>