diff --git a/build.sh b/build.sh
index 05850b5..a7cdf3f 100644
--- a/build.sh
+++ b/build.sh
@@ -32,7 +32,7 @@ if [[ "$1" == "test" ]]; then ########## TEST ##########
     ###
 
     # Compile
-    $compiler $testFile $sourceFiles $includeFiles $flags -o $output
+    $compiler -lwhy2 $testFile $flags -o $output
 
     # Compilation failed
     if [[ $? -ne 0 ]]; then
diff --git a/src/decrypter.c b/src/decrypter.c
index e654a54..5e4f0dd 100644
--- a/src/decrypter.c
+++ b/src/decrypter.c
@@ -1,11 +1,11 @@
-#include "../include/decrypter.h"
+#include <why2/decrypter.h>
 
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
 
-#include "../include/flags.h"
-#include "../include/misc.h"
+#include <why2/flags.h>
+#include <why2/misc.h>
 
 char*
 decryptText(char *text, char *key)
diff --git a/src/encrypter.c b/src/encrypter.c
index 08b2529..ec060d2 100644
--- a/src/encrypter.c
+++ b/src/encrypter.c
@@ -1,4 +1,4 @@
-#include "../include/encrypter.h"
+#include <why2/encrypter.h>
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -6,8 +6,8 @@
 #include <time.h>
 #include <math.h>
 
-#include "../include/flags.h"
-#include "../include/misc.h"
+#include <why2/flags.h>
+#include <why2/misc.h>
 
 char*
 encryptText(char *text, char *keyNew)
diff --git a/src/misc.c b/src/misc.c
index ed72f83..20fabcc 100644
--- a/src/misc.c
+++ b/src/misc.c
@@ -1,4 +1,4 @@
-#include "../include/misc.h"
+#include <why2/misc.h>
 
 #include <string.h>
 #include <unistd.h>
@@ -6,7 +6,7 @@
 #include <curl/curl.h>
 #include <json-c/json.h>
 
-#include "../include/flags.h"
+#include <why2/flags.h>
 
 #define CLEAR_SCREEN "\e[1;1H\e[2J"
 #define NOT_FOUND_TRIES 10
diff --git a/src/test/main.c b/src/test/main.c
index 08acdbd..0c6247c 100644
--- a/src/test/main.c
+++ b/src/test/main.c
@@ -2,8 +2,8 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "../../include/encrypter.h"
-#include "../../include/decrypter.h"
+#include <why2/encrypter.h>
+#include <why2/decrypter.h>
 
 #define TEST_TEXT "Pepa smrdí."
 #define TEST_KEY "lZwOBFvjJEmaYRIaKsALKLkSeJvXhFPbZIRNFbjQRNyiOuLTexhgOpObHzyQgNT"