diff --git a/Dockerfile b/Dockerfile
index 2e151fa..a5c2b09 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -29,6 +29,6 @@ RUN git clone --depth 1 --branch 2.1.1 --single-branch https://github.com/raspbe
     mkdir build && \
     cd build && \
     cmake .. && \
-    make && \
-    cp /home/picotool/build/picotool /bin/picotool && \
+    make -j$(nproc) && \
+    cmake --install . && \
     rm -rf /home/picotool