diff -Naur mtpfs-1.1.orig/mtpfs.c mtpfs-1.1/mtpfs.c
--- mtpfs-1.1.orig/mtpfs.c	2021-10-01 00:15:15.763423589 +0200
+++ mtpfs-1.1/mtpfs.c	2021-10-01 00:16:07.626486888 +0200
@@ -1371,6 +1371,8 @@
     extern int optind;
     extern char *optarg;
 
+    g_mutex_init(&device_lock);
+
     //while ((opt = getopt(argc, argv, "d")) != -1 ) {
         //switch (opt) {
         //case 'd':
diff -Naur mtpfs-1.1.orig/mtpfs.h mtpfs-1.1/mtpfs.h
--- mtpfs-1.1.orig/mtpfs.h	2021-10-01 00:15:15.779423609 +0200
+++ mtpfs-1.1/mtpfs.h	2021-10-01 00:16:20.322502337 +0200
@@ -77,7 +77,7 @@
 static GSList *myfiles = NULL;
 static LIBMTP_playlist_t *playlists = NULL;
 static gboolean playlists_changed = FALSE;
-static GMutex device_lock = G_STATIC_MUTEX_INIT;
+static GMutex device_lock;
 
 
 #endif /* _MTPFS_H_ */