diff --git a/pb-jelly-gen/regen_gen_protos.sh b/pb-jelly-gen/regen_gen_protos.sh
index 4767e62..9b5fbac 100755
--- a/pb-jelly-gen/regen_gen_protos.sh
+++ b/pb-jelly-gen/regen_gen_protos.sh
@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
-cargo build && \
+cargo build --no-default-features && \
 protoc --plugin=protoc-gen-jellyrust=target/debug/protoc-gen-jellyrust -Iproto rust/extensions.proto google/protobuf/{compiler/plugin,descriptor}.proto --jellyrust_out=single_file:src