diff --git a/jenkins/build-opm-module.sh b/jenkins/build-opm-module.sh
index 8dad8b031..293cbadc5 100755
--- a/jenkins/build-opm-module.sh
+++ b/jenkins/build-opm-module.sh
@@ -112,11 +112,12 @@ function build_module {
       cmake --build .
     fi
     test $? -eq 0 || exit 2
+    TESTTHREADS=${TESTTHREADS:-1}
     if test -z "$CTEST_CONFIGURATION"
     then
-      ctest -T Test --no-compress-output
+      ctest -T Test --no-compress-output -j$TESTTHREADS
     else
-      ctest -C $CTEST_CONFIGURATION --timeout 5000 -T Test --no-compress-output
+      ctest -j$TESTTHREADS -C $CTEST_CONFIGURATION --timeout 5000 -T Test --no-compress-output
     fi
 
     # Convert to junit format