diff --git a/lib/roken/gettimeofday.c b/lib/roken/gettimeofday.c
index b1250afc0..ba5a5f0f3 100644
--- a/lib/roken/gettimeofday.c
+++ b/lib/roken/gettimeofday.c
@@ -36,6 +36,9 @@
  * SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
 #include "roken.h"
 #ifndef HAVE_GETTIMEOFDAY
 
diff --git a/lib/roken/getuid.c b/lib/roken/getuid.c
index 2e0d85fe6..8e68feec9 100644
--- a/lib/roken/getuid.c
+++ b/lib/roken/getuid.c
@@ -36,6 +36,9 @@
  * SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
 #include "roken.h"
 
 #ifndef HAVE_GETUID
diff --git a/lib/roken/swab.c b/lib/roken/swab.c
index eb11ba833..a7dddd5bc 100644
--- a/lib/roken/swab.c
+++ b/lib/roken/swab.c
@@ -36,6 +36,9 @@
  * SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
 #include "roken.h"
 
 #ifndef HAVE_SWAB