diff --git a/BasiliskII/src/MacOSX/extfs_macosx.cpp b/BasiliskII/src/MacOSX/extfs_macosx.cpp
index b610ee7a..dea61b00 100644
--- a/BasiliskII/src/MacOSX/extfs_macosx.cpp
+++ b/BasiliskII/src/MacOSX/extfs_macosx.cpp
@@ -251,7 +251,9 @@ static int open_rsrc(const char *path, int flag)
 	char rsrc_path[MAX_PATH_LENGTH];
 	make_rsrc_path(path, rsrc_path);
 
-	return open(rsrc_path, flag);
+	int fd = open(rsrc_path, flag);
+	if (fd < 0 && flag == O_WRONLY) fd = open(rsrc_path, O_WRONLY | O_CREAT); // for APFS
+	return fd;
 }