diff --git a/apps/plugins/rockbox_flash.c b/apps/plugins/rockbox_flash.c
index 4644521329..ef9703e971 100644
--- a/apps/plugins/rockbox_flash.c
+++ b/apps/plugins/rockbox_flash.c
@@ -292,7 +292,7 @@ tCheckResult CheckImageFile(char* filename, int space, tImageHeader* pHeader)
         rb->close(fd);
         return eTooBig;
     }
-    else if (filesize < 50000) /* give it some reasonable lower limit */
+    else if (filesize < 40000) /* give it some reasonable lower limit */
     {
         rb->close(fd);
         return eTooSmall;