diff --git a/block/raw-posix.c b/block/raw-posix.c
index 03fcfcc..0d9be0b 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -946,9 +946,11 @@ static int floppy_probe_device(const char *filename)
     int prio = 0;
     struct floppy_struct fdparam;
     struct stat st;
+    const char *p;
 
-    if (strstart(filename, "/dev/fd", NULL))
+    if (strstart(filename, "/dev/fd", &p) && p[0] != '/') {
         prio = 50;
+    }
 
     fd = open(filename, O_RDONLY | O_NONBLOCK);
     if (fd < 0) {