diff --git a/src/sources/source.h b/src/sources/source.h
index ad889cf..bc65dbc 100644
--- a/src/sources/source.h
+++ b/src/sources/source.h
@@ -4,7 +4,14 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+#include <assert.h>
 #include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "../strlcpy.h"
 
 #define INIT_MAX 256