diff --git a/jass/test/data_real/initTable-computed-cov.hdf5 b/jass/test/data_real/initTable-computed-cov.hdf5
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diff --git a/jass/test/data_real/initTable.hdf5 b/jass/test/data_real/initTable.hdf5
index 821bdcc09b2740e389cec2d5049da4fb1b2d3523..85a869ff55510f47b6622db2a0c81bfa8e904be5 100644
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diff --git a/jass/test/data_real/worktable-nonans.hdf5 b/jass/test/data_real/worktable-nonans.hdf5
new file mode 100644
index 0000000000000000000000000000000000000000..2e1f6526b9f5f2741ed7627bb6f72e12e543ae4f
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diff --git a/jass/test/data_real/worktable.hdf5 b/jass/test/data_real/worktable-withnans.hdf5
similarity index 100%
rename from jass/test/data_real/worktable.hdf5
rename to jass/test/data_real/worktable-withnans.hdf5
diff --git a/jass/test/update_test_hdf5_files.sh b/jass/test/update_test_hdf5_files.sh
index 35e5729cc5c41ea7910035759d8d9edbda9d2e35..5ec8a85a8228207e3634ecd40d30f4b3e6255e4e 100755
--- a/jass/test/update_test_hdf5_files.sh
+++ b/jass/test/update_test_hdf5_files.sh
@@ -25,7 +25,13 @@ for DATA_DIR in $DATA_DIRS; do
   echo "Creating inittable"
   jass create-inittable --input-data-path "./${DATA_DIR}/z*.txt" --init-covariance-path "./${DATA_DIR}/COV.csv" --init-genetic-covariance-path ${GEN_COV} --regions-map-path "./${DATA_DIR}/regions.txt" --description-file-path "./${DATA_DIR}/summary.csv" --init-table-metadata-path "./${DATA_DIR}/metadata.txt" --init-table-path "./${DATA_DIR}/initTable.hdf5"
 
+  echo "Creating inittable without pre-computed covariance matrix"
+  jass create-inittable --input-data-path "./${DATA_DIR}/z*.txt"                                                --init-genetic-covariance-path ${GEN_COV} --regions-map-path "./${DATA_DIR}/regions.txt" --description-file-path "./${DATA_DIR}/summary.csv" --init-table-metadata-path "./${DATA_DIR}/metadata.txt" --init-table-path "./${DATA_DIR}/initTable-computed-cov.hdf5"
+
+  echo "Creating worktable with Nan"
+  jass create-project-data --init-table-path "${DATA_DIR}/initTable.hdf5" --phenotype ${TRAITS} --worktable-path ./${DATA_DIR}/worktable-withnans.hdf5
+
   echo "Creating worktable"
-  jass create-project-data --init-table-path "${DATA_DIR}/initTable.hdf5" --phenotype ${TRAITS} --worktable-path ./${DATA_DIR}/worktable.hdf5
+  jass create-project-data --init-table-path "${DATA_DIR}/initTable.hdf5" --phenotype ${TRAITS} --worktable-path ./${DATA_DIR}/worktable-nonans.hdf5 --remove-nans
 
 done
\ No newline at end of file