diff --git a/.github/workflows/io_gnu.yml b/.github/workflows/io_gnu.yml
index 1317bd69c..2a538deee 100644
--- a/.github/workflows/io_gnu.yml
+++ b/.github/workflows/io_gnu.yml
@@ -107,9 +107,9 @@ jobs:
           cmake -DSWITCH=${GITHUB_WORKSPACE}/ww3/model/tests/data/switch.io -DCMAKE_BUILD_TYPE=Debug -DCMAKE_Fortran_FLAGS="-g -fprofile-abs-path -fprofile-arcs -ftest-coverage -O0 -Wall -fno-omit-frame-pointer -fsanitize=address" -DCMAKE_C_FLAGS="-g -fprofile-abs-path -fprofile-arcs -ftest-coverage -O0 -Wall -fno-omit-frame-pointer -fsanitize=address" ..
           make -j2 VERBOSE=1
           ./bin/ww3_grid
-          mv mod_def.ww3 model/tests
+          mv mod_def.ww3 regtests/unittests
           ctest --verbose --output-on-failure --rerun-failed
-          gcovr --root .. -v  --html-details --exclude ../model/tests --exclude CMakeFiles --print-summary -o test-coverage.html &> /dev/null
+          gcovr --root .. -v  --html-details --exclude ../regtests/unittests --exclude CMakeFiles --print-summary -o test-coverage.html &> /dev/null
         
       - name: upload-test-coverage
         uses: actions/upload-artifact@v3
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 126f6faf8..5436f9cb1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -62,5 +62,5 @@ add_subdirectory(model)
 # Turn on unit testing.
 include(CTest)
 if(BUILD_TESTING)
-  add_subdirectory(model/tests)
+  add_subdirectory(regtests/unittests)
 endif()
diff --git a/model/tests/CMakeLists.txt b/regtests/unittests/CMakeLists.txt
similarity index 100%
rename from model/tests/CMakeLists.txt
rename to regtests/unittests/CMakeLists.txt
diff --git a/model/tests/data/switch.io b/regtests/unittests/data/switch.io
similarity index 100%
rename from model/tests/data/switch.io
rename to regtests/unittests/data/switch.io
diff --git a/model/tests/data/ww3_grid.inp b/regtests/unittests/data/ww3_grid.inp
similarity index 100%
rename from model/tests/data/ww3_grid.inp
rename to regtests/unittests/data/ww3_grid.inp
diff --git a/model/tests/data/ww3_outp.inp b/regtests/unittests/data/ww3_outp.inp
similarity index 100%
rename from model/tests/data/ww3_outp.inp
rename to regtests/unittests/data/ww3_outp.inp
diff --git a/model/tests/test_io_points_bin.F90 b/regtests/unittests/test_io_points_bin.F90
similarity index 100%
rename from model/tests/test_io_points_bin.F90
rename to regtests/unittests/test_io_points_bin.F90