diff --git a/Dockerfile b/Dockerfile
index fe958b47fee5b6526250f2898b9d13be68a34cc1..474f58b6320722476cbc4a783f4b8ccc0e7655d0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -110,6 +110,7 @@ RUN chown -R user /build
 USER user
 
 RUN cd MUST-v${MUST_VERSION}/build && \
+    OMPI_MCA_rmaps_base_oversubscribe=true \
     make check-minimal -j8
 
 RUN rm -r /build