diff --git a/Dockerfile b/Dockerfile
index 23ef05a..c47cd04 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,11 +6,13 @@ RUN apk add musl-dev
 RUN USER=root cargo new --bin cup
 WORKDIR /cup
 
-COPY Cargo.toml Cargo.lock ./
+COPY Cargo.toml Cargo.lock .
 RUN cargo build --release
-RUN rm src/*.rs
+RUN rm -rf src/
 
-COPY src ./src
+COPY src src
+# This is a very bad workaround, but cargo only triggers a rebuild this way for some reason
+RUN printf "\n" >> src/main.rs
 RUN cargo build --release
 
 FROM scratch