diff --git a/radamsa.c b/radamsa.c
index 5e5735d..d93ef42 100644
--- a/src/radamsa.c
+++ b/src/radamsa.c
@@ -2547,6 +2547,7 @@ unsigned char heap[] = {2,3,9,114,101,99,117,114,115,105,118,101,2,3,1,43,2,
 #include <sys/wait.h>
 #include <sys/wait.h>
 #include <termios.h>
+#include <arpa/inet.h>
 #ifndef O_BINARY
 #define O_BINARY 0
 #endif