diff --git a/blockdev.c b/blockdev.c
index 642ce756accdebedf9c2f704f6af6cea093b9cbf..dbeef09cebe5781f1bb77c7595818f115bbd7c80 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -462,7 +462,7 @@ DriveInfo *drive_init(QemuOpts *opts, int default_to_scsi, int *fatal_error)
     case IF_COUNT:
         abort();
     }
-    if (!file) {
+    if (!file || !*file) {
         *fatal_error = 0;
         return NULL;
     }