diff --git a/libelfloader/source/elfloader.c b/libelfloader/source/elfloader.c
index 4c4d914..9c964ea 100644
--- a/libelfloader/source/elfloader.c
+++ b/libelfloader/source/elfloader.c
@@ -1,6 +1,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include <sys/mman.h>
+
 #include <elfloader.h>
 
 /* Defines */
diff --git a/liborbisAudio/source/orbisAudio.c b/liborbisAudio/source/orbisAudio.c
index 6be6827..a73cf60 100644
--- a/liborbisAudio/source/orbisAudio.c
+++ b/liborbisAudio/source/orbisAudio.c
@@ -10,6 +10,7 @@
 #include <kernel.h>
 #include <audioout.h>
 #include <debugnet.h>
+#include <unistd.h>
 #include "orbisAudio.h"
 
 
diff --git a/liborbisKeyboard/source/orbisKeyboard.c b/liborbisKeyboard/source/orbisKeyboard.c
index 0763d86..133cbad 100644
--- a/liborbisKeyboard/source/orbisKeyboard.c
+++ b/liborbisKeyboard/source/orbisKeyboard.c
@@ -9,6 +9,7 @@
 #include <stdbool.h>
 #include <userservice.h>
 #include <sysmodule.h>
+#include <unistd.h>
 
 #include "orbisKeyboard.h"
 #include "kb.h"
diff --git a/libps4link/source/jailbreak.c b/libps4link/source/jailbreak.c
index 362c371..9e68245 100644
--- a/libps4link/source/jailbreak.c
+++ b/libps4link/source/jailbreak.c
@@ -1,6 +1,8 @@
 #include <stdint.h>
 #include <kernel.h>
 #include <sys/mman.h>
+#include <debugnet.h>
+#include <unistd.h>
 
 #define	CTL_KERN	1	/* "high kernel": proc, limits */
 #define	KERN_PROC	14	/* struct: process entries */