diff --git a/Dockerfile b/Dockerfile
index 8a9a718..1dc8a37 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -36,7 +36,7 @@ RUN git clone  --branch $OSM2PGSQL_VERSION git://github.com/openstreetmap/osm2pg
     mkdir build &&\
     cd build &&\
     cmake .. &&\
-    make &&\
+    make -j4 &&\
     make install
 
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