1 files changed, 1 insertions, 0 deletions
diff --git a/rfc822.c b/rfc822.c
index dbcda322..8fe209ab 100644
--- a/rfc822.c
+++ b/rfc822.c
@@ -22,6 +22,7 @@ MIT license.  Compile with -DMAIN to build the demonstrator.
 #include  <stdio.h>
 #include  <ctype.h>
 #include  <string.h>
+#include  <strings.h>
 #include  <stdlib.h>
 
 #include "fetchmail.h"