diff --git a/src/manager/kiwix-manage.cpp b/src/manager/kiwix-manage.cpp
index 8414227..017c64d 100644
--- a/src/manager/kiwix-manage.cpp
+++ b/src/manager/kiwix-manage.cpp
@@ -17,9 +17,6 @@
  * MA 02110-1301, USA.
  */
 
-#ifndef _WIN32
-#include <unistd.h>
-#endif
 #include <getopt.h>
 #include <kiwix/tools/stringTools.h>
 #include <kiwix/manager.h>
diff --git a/src/reader/kiwix-read.cpp b/src/reader/kiwix-read.cpp
index 4025bbb..af814f8 100644
--- a/src/reader/kiwix-read.cpp
+++ b/src/reader/kiwix-read.cpp
@@ -19,7 +19,6 @@
 
 #include <getopt.h>
 #include <kiwix/reader.h>
-#include <unistd.h>
 #include <map>
 #include <string>
 
diff --git a/src/searcher/kiwix-search.cpp b/src/searcher/kiwix-search.cpp
index 97129f8..fb65f3b 100644
--- a/src/searcher/kiwix-search.cpp
+++ b/src/searcher/kiwix-search.cpp
@@ -20,7 +20,6 @@
 #include <getopt.h>
 #include <kiwix/reader.h>
 #include <kiwix/searcher.h>
-#include <unistd.h>
 
 
 void usage()
diff --git a/src/server/kiwix-serve.cpp b/src/server/kiwix-serve.cpp
index 81b1a32..be69824 100644
--- a/src/server/kiwix-serve.cpp
+++ b/src/server/kiwix-serve.cpp
@@ -79,7 +79,6 @@ extern "C" {
 #include <stdint.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
-#include <unistd.h>
 #endif
 
 #include "request_context.h"