diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index b522e509..b3460c00 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -15,24 +15,37 @@ jobs:
         include:
           - os: ubuntu-22.04
             build_type: Release
-            row_major: ON
+            access: row_major
+            test: unit_tests
           - os: ubuntu-22.04
             build_type: RelWithDebInfo
-            row_major: OFF
+            access: col_major
+            test: unit_tests
           - os: ubuntu-24.04
             build_type: RelWithDebInfo
-            row_major: OFF
+            access: col_major
+            test: unit_tests
           - os: macos-13
             build_type: RelWithDebInfo
-            row_major: OFF
+            access: col_major
+            test: unit_tests
           - os: macos-14
             build_type: RelWithDebInfo
-            row_major: OFF
+            access: col_major
+            test: unit_tests
       fail-fast: false
-    env:
-      ROW_MAJOR_DEFAULT: ${{ matrix.row_major }}
 
     steps:
+      - name: Set default value for ROW_MAJOR_DEFAULT
+        run: echo "ROW_MAJOR_DEFAULT=OFF" >> $GITHUB_ENV
+
+      - name: Update ROW_MAJOR_DEFAULT if condition is met
+        if: matrix.access == 'row_major'
+        run: echo "ROW_MAJOR_DEFAULT=ON" >> $GITHUB_ENV
+
+      - name: Print ROW_MAJOR_DEFAULT
+        run: echo $ROW_MAJOR_DEFAULT
+
       - uses: actions/checkout@v2
 
       - name: ccache
@@ -47,4 +60,4 @@ jobs:
         if: matrix.os == 'macos-14' || matrix.os == 'macos-13'
 
       - name: Run tests
-        run: ./scripts/run_cpp_tests.sh
+        run: ./scripts/run_cpp_tests.sh
\ No newline at end of file