1 files changed, 2 insertions, 0 deletions
diff --git a/src/prot.c b/src/prot.c
index 79a88c5..a617a53 100644
--- a/src/prot.c
+++ b/src/prot.c
@@ -1,5 +1,7 @@
 /* Public domain. */
 
+#include <unistd.h>
+#include <grp.h>
 #include "hasshsgr.h"
 #include "prot.h"