diff --git a/CHANGELOG.md b/CHANGELOG.md
index faf0c44..f56cb5a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## [v0.3.1] - 2022-03-12 (Beta)
+
+### Fixes
+
+- Fixes a `protoc-gen-frisbee` bug where the client message type didn't have the correct offset
+
 ## [v0.3.0] - 2022-03-12 (Beta)
 
 ### Changes
diff --git a/protoc-gen-frisbee/dockerfile b/protoc-gen-frisbee/dockerfile
new file mode 100644
index 0000000..bc12675
--- /dev/null
+++ b/protoc-gen-frisbee/dockerfile
@@ -0,0 +1,19 @@
+FROM golang as builder
+
+ENV GOOS=linux GOARCH=amd64 CGO_ENABLED=0
+
+RUN go install github.com/loopholelabs/frisbee/protoc-gen-frisbee@v0.3.0
+
+# Note, the Docker images must be built for amd64. If the host machine architecture is not amd64
+# you need to cross-compile the binary and move it into /go/bin.
+RUN bash -c 'find /go/bin/${GOOS}_${GOARCH}/ -mindepth 1 -maxdepth 1 -exec mv {} /go/bin \;'
+
+FROM scratch
+
+# Runtime dependencies
+LABEL "build.buf.plugins.runtime_library_versions.0.name"="github.com/loopholelabs/frisbee"
+LABEL "build.buf.plugins.runtime_library_versions.0.version"="v0.3.0"
+
+COPY --from=builder /go/bin /
+
+ENTRYPOINT ["/protoc-gen-frisbee"]
diff --git a/protoc-gen-frisbee/pkg/generator/client.go b/protoc-gen-frisbee/pkg/generator/client.go
index f31cbf7..1869884 100644
--- a/protoc-gen-frisbee/pkg/generator/client.go
+++ b/protoc-gen-frisbee/pkg/generator/client.go
@@ -53,7 +53,7 @@ func writeClientMethod(f File, method protoreflect.MethodDescriptor, operation i
 	f.P("func (c *Client) ", utils.CamelCase(string(method.Name())), "(ctx context.Context, req *", utils.CamelCase(string(method.Input().FullName())), ") (res *", utils.CamelCase(string(method.Output().FullName())), ", err error) {")
 	f.P(tab, "ch := make(chan *", utils.CamelCase(string(method.Output().FullName())), ", 1)")
 	f.P(tab, "p := packet.Get()")
-	f.P(tab, "p.Metadata.Operation = ", operation)
+	f.P(tab, "p.Metadata.Operation = ", operation+operationOffset)
 	f.P("LOOP:")
 	f.P(tab, "p.Metadata.Id = c.next", utils.CamelCase(string(method.Name())), ".Load().(uint16)")
 	f.P(tab, "if !c.next", utils.CamelCase(string(method.Name())), ".CompareAndSwap(p.Metadata.Id, p.Metadata.Id+1) {")
@@ -87,7 +87,7 @@ func writeClientMethod(f File, method protoreflect.MethodDescriptor, operation i
 func writeClientIgnoreMethod(f File, method protoreflect.MethodDescriptor, operation int) {
 	f.P("func (c *Client) ", utils.CamelCase(string(method.Name())), "Ignore(ctx context.Context, req *", utils.CamelCase(string(method.Input().FullName())), ") (err error) {")
 	f.P(tab, "p := packet.Get()")
-	f.P(tab, "p.Metadata.Operation = ", operation)
+	f.P(tab, "p.Metadata.Operation = ", operation+operationOffset)
 	f.P("LOOP:")
 	f.P(tab, "p.Metadata.Id = c.next", utils.CamelCase(string(method.Name())), ".Load().(uint16)")
 	f.P(tab, "if !c.next", utils.CamelCase(string(method.Name())), ".CompareAndSwap(p.Metadata.Id, p.Metadata.Id+1) {")