diff --git a/include/nls.h b/include/nls.h
index be2114ee..17ce836d 100644
--- a/include/nls.h
+++ b/include/nls.h
@@ -1,6 +1,10 @@
 #ifndef PROCPS_NG_NLS_H
 #define PROCPS_NG_NLS_H
 
+/* programs issuing textdomain() need PACKAGE string */
+#include "../config.h"
+
+/* programs issuing bindtextdomain() also need LOCALEDIR string */
 #ifndef LOCALEDIR
 #define LOCALEDIR "/usr/share/locale"
 #endif