diff --git a/.github/workflows/code-coverage.yml b/.github/workflows/code-coverage.yml
index 106fa2a4..8ad7f0ec 100644
--- a/.github/workflows/code-coverage.yml
+++ b/.github/workflows/code-coverage.yml
@@ -32,7 +32,7 @@ jobs:
       working-directory: ${{github.workspace}}/build
       env:
         CTEST_OUTPUT_ON_FAILURE: 1
-      run: ctest -C ${{ matrix.configuration }} -j `nproc` -V
+      run: ctest -C Debug -j `nproc` -V
     
     - name: Upload coverage to Codecov
       uses: codecov/codecov-action@v1
\ No newline at end of file
diff --git a/include/postgresql.hpp b/include/postgresql.hpp
index 2e25513d..832f01d1 100644
--- a/include/postgresql.hpp
+++ b/include/postgresql.hpp
@@ -333,9 +333,14 @@ class postgresql {
             }
             else if constexpr (std::is_same_v<decltype(item), ormpp_auto_key>) {
               if (!has_add_field) {
-                append(sql, field_name.data(), " ");
+                if (type_name_arr[i] == "bigint") {
+                  append(sql, field_name.data(), " ", "bigserial");
+                }
+                else {
+                  append(sql, field_name.data(), " ", "serial");
+                }
               }
-              append(sql, " serial primary key");
+              append(sql, " primary key");
               has_add_field = true;
             }
             else if constexpr (std::is_same_v<decltype(item), ormpp_unique>) {