diff --git a/tools/binman/etype/u_boot_ucode.py b/tools/binman/etype/u_boot_ucode.py
index 4462293618..b4cb8cdb6e 100644
--- a/tools/binman/etype/u_boot_ucode.py
+++ b/tools/binman/etype/u_boot_ucode.py
@@ -81,6 +81,7 @@ class Entry_u_boot_ucode(Entry_blob):
             if fdt_entry:
                 break
         if not fdt_entry:
+            self.data = b''
             return True
         if not fdt_entry.ready:
             return False