diff --git a/regressionTests.cmake b/regressionTests.cmake
index aa5316cfe..041146f2d 100644
--- a/regressionTests.cmake
+++ b/regressionTests.cmake
@@ -1496,7 +1496,7 @@ if(BUILD_FLOW_POLY_GRID)
                            DIR spe1)
 endif()
 
-if(dune-alugrid_FOUND AND BUILD_FLOW_ALU_GRID)
+if(dune-alugrid_FOUND AND BUILD_FLOW_ALU_GRID AND MPI_FOUND)
   add_test_compareECLFiles(CASENAME spe12_alugrid
                            FILENAME SPE1CASE2
                            SIMULATOR flow_blackoil_alugrid