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-rw-r--r--swaylock/shadow.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/swaylock/shadow.c b/swaylock/shadow.c
index f928eaa3..b7b10a67 100644
--- a/swaylock/shadow.c
+++ b/swaylock/shadow.c
@@ -1,4 +1,4 @@
-#define _XOPEN_SOURCE
+#define _XOPEN_SOURCE // for crypt
#include <pwd.h>
#include <shadow.h>
#include <stdbool.h>