diff --git a/upbc/BUILD b/upbc/BUILD
index b8249e696d..fc06f75f93 100644
--- a/upbc/BUILD
+++ b/upbc/BUILD
@@ -77,6 +77,7 @@ cc_binary(
     deps = [
         "//:mem",
         "//:message",
+        "//:message_accessors",
         "//:mini_table",
         "//upbc:upbdev",
     ],
diff --git a/upbc/upbc_so.c b/upbc/upbc_so.c
index ac7809d0a6..ac109e05c6 100644
--- a/upbc/upbc_so.c
+++ b/upbc/upbc_so.c
@@ -30,6 +30,7 @@
 #define UPB_BUILD_API
 
 #include "upb/mem/arena.h"
+#include "upb/message/accessors.h"
 #include "upb/message/message.h"
 #include "upb/mini_table/decode.h"
 #include "upbc/upbdev.h"