diff --git a/lib/roken/roken.h.in b/lib/roken/roken.h.in
index 0b6c78e75..baf908820 100644
--- a/lib/roken/roken.h.in
+++ b/lib/roken/roken.h.in
@@ -122,6 +122,9 @@ struct sockaddr_dl;
 #else
 #include <time.h>
 #endif
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
 
 #ifdef HAVE_PATHS_H
 #include <paths.h>