diff --git a/src/gbm/main/gbm.c b/src/gbm/main/gbm.c
index c046b1a..b237fdb 100644
--- a/src/gbm/main/gbm.c
+++ b/src/gbm/main/gbm.c
@@ -38,6 +38,7 @@
 #include <sys/stat.h>
 #include <unistd.h>
 #include <errno.h>
+#include <sys/sysmacros.h>
 
 #include "gbm.h"
 #include "gbmint.h"