diff --git a/docker/Dockerfile.end-user b/docker/Dockerfile.end-user
index b07284a9f9..9665338ae2 100644
--- a/docker/Dockerfile.end-user
+++ b/docker/Dockerfile.end-user
@@ -138,6 +138,7 @@ COPY --from=intermediate /dolfinx-env /dolfinx-env
 # Note that because we inherit from dev-env we do not inherit these ENV from
 # dolfinx-onbuild so this must be repeated here.
 ENV PKG_CONFIG_PATH=/usr/local/dolfinx-real/lib/pkgconfig:$PKG_CONFIG_PATH \
+    CMAKE_PREFIX_PATH=/usr/local/dolfinx-real/lib/cmake:$CMAKE_PREFIX_PATH \
     PETSC_ARCH=linux-gnu-real64-32 \
     PYTHONPATH=/usr/local/dolfinx-real/lib/python${PYTHON_VERSION}/dist-packages:$PYTHONPATH \
     LD_LIBRARY_PATH=/usr/local/dolfinx-real/lib:$LD_LIBRARY_PATH