diff --git a/src/client/client.h b/src/client/client.h
index ef668d5..49fc0d5 100644
--- a/src/client/client.h
+++ b/src/client/client.h
@@ -4,6 +4,7 @@
 #include "../../libs/communication/communication.h"
 #include "../../libs/protocol/protocol.h"
 #include <stdio.h>
+#include <sys/wait.h>
 #include <stdlib.h>
 #include <sys/stat.h>
 #include <unistd.h>
diff --git a/src/djumbai_client_send/djumbai_client_send.c b/src/djumbai_client_send/djumbai_client_send.c
index c8f5dd7..72134b8 100644
--- a/src/djumbai_client_send/djumbai_client_send.c
+++ b/src/djumbai_client_send/djumbai_client_send.c
@@ -1,5 +1,6 @@
 #include "../../libs/protocol/protocol.h"
 #include <stdio.h>
+#include <sys/wait.h>
 #include <stdlib.h>
 #include <unistd.h>
 
diff --git a/src/djumbai_send/djumbai_send.c b/src/djumbai_send/djumbai_send.c
index cc842fd..e57f1f4 100644
--- a/src/djumbai_send/djumbai_send.c
+++ b/src/djumbai_send/djumbai_send.c
@@ -1,6 +1,7 @@
 #include "../../libs/communication/communication.h"
 #include "../../libs/protocol/protocol.h"
 #include <errno.h>
+#include <sys/wait.h>
 #include <fcntl.h>
 #include <pwd.h>
 #include <stdio.h>