diff --git a/board/hammer/board.h b/board/hammer/board.h
index a9c60a0807..0deeccce1d 100644
--- a/board/hammer/board.h
+++ b/board/hammer/board.h
@@ -78,7 +78,7 @@
 
 /* Sign and switch to RW partition on boot. */
 #define CONFIG_RWSIG
-#define CONFIG_RWSIG_TYPE_USBPD1
+#define CONFIG_RWSIG_TYPE_RWSIG
 #define CONFIG_RSA
 #define CONFIG_SHA256
 #define CONFIG_RSA_KEY_SIZE 2048