diff --git a/executable_semantics/syntax/BUILD b/executable_semantics/syntax/BUILD
index 5c6200365ae9..38c6770447b3 100644
--- a/executable_semantics/syntax/BUILD
+++ b/executable_semantics/syntax/BUILD
@@ -66,6 +66,7 @@ cc_library(
         "//executable_semantics/ast:expression",
         "//executable_semantics/ast:paren_contents",
         "//executable_semantics/ast:pattern",
+        "//executable_semantics/ast:value_category",
         "//executable_semantics/common:arena",
         "//executable_semantics/common:error",
         "//executable_semantics/common:nonnull",