Fix a comment typo
diff --git a/sysdeps/linux-gnu/hooks.c b/sysdeps/linux-gnu/hooks.c
index 17c9160..a0ddb4f 100644
--- a/sysdeps/linux-gnu/hooks.c
+++ b/sysdeps/linux-gnu/hooks.c
@@ -161,7 +161,7 @@
 		VECT_DESTROY(&v, struct opt_F_t, destroy_opt_F_cb, NULL);
 	}
 
-	/* SYSCONFDIF is passed via -D when compiling.  */
+	/* SYSCONFDIR is passed via -D when compiling.  */
 	const char *sysconfdir = SYSCONFDIR;
 	if (sysconfdir != NULL)
 		add_dir(&dirs, sysconfdir, "");