diff --git a/lib/find_new_gid.c b/lib/find_new_gid.c
index cfd56098..6f5da4cb 100644
--- a/lib/find_new_gid.c
+++ b/lib/find_new_gid.c
@@ -9,6 +9,7 @@
 #include <config.h>
 
 #include <assert.h>
+#include <stdint.h>
 #include <stdio.h>
 #include <errno.h>
 
diff --git a/lib/find_new_uid.c b/lib/find_new_uid.c
index 45ce712c..41d26944 100644
--- a/lib/find_new_uid.c
+++ b/lib/find_new_uid.c
@@ -9,6 +9,7 @@
 #include <config.h>
 
 #include <assert.h>
+#include <stdint.h>
 #include <stdio.h>
 #include <errno.h>