diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 17f010a..3ba2b3a 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -52,7 +52,7 @@ jobs:
         run: |
             cd ${{github.workspace}}/bin_tests/
             for test in ./unittest_*; do
-              LD_LIBRARY_PATH=./bin:$LD_LIBRARY_PATH ./$test
+              LD_LIBRARY_PATH=../bin:$LD_LIBRARY_PATH ./$test
             done;
           
       - name: Upload binary
@@ -61,6 +61,52 @@ jobs:
           name: akashi-linux
           path: bin/
   
+  coverage:
+    needs: build-linux
+    runs-on: ubuntu-latest
+
+    steps:
+       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+      
+      # Runs a single command using the runners shell
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install qt5-default libqt5websockets5-dev g++ make
+      # Runs a set of commands using the runners shell
+      - name: qmake and build
+        run: |
+          cd $GITHUB_WORKSPACE
+          qmake CONFIG+=coverage
+          make
+          
+      - name: Run tests
+        run: |
+            cd ${{github.workspace}}/bin_tests/
+            for test in ./unittest_*; do
+              LD_LIBRARY_PATH=../bin:$LD_LIBRARY_PATH ./$test
+            done;
+
+      - name: Copy coverage files
+        run: |
+          cd ${{github.workspace}}/core
+          gcov *.o
+          cd ..
+          mkdir coverage
+          cp core/*.gcov coverage/
+
+      - name: Codecov
+        uses: codecov/codecov-action@v3.1.0
+        with:
+          files: coverage/*
+
+      - name: Upload coverage files
+        uses: actions/upload-artifact@v2
+        with:
+          name: coverage statistics
+          path: coverage/
+
   build-windows:
     needs: formatting-check
     runs-on: windows-latest
diff --git a/akashi/akashi.pro b/akashi/akashi.pro
index fe91621..c7f2246 100644
--- a/akashi/akashi.pro
+++ b/akashi/akashi.pro
@@ -4,6 +4,10 @@ TEMPLATE = app
 
 CONFIG += c++11 console
 
+coverage {
+    LIBS += -lgcov
+}
+
 # The following define makes your compiler emit warnings if you use
 # any Qt feature that has been marked deprecated (the exact warnings
 # depend on your compiler). Please consult the documentation of the
diff --git a/core/core.pro b/core/core.pro
index e59f274..0052b3a 100644
--- a/core/core.pro
+++ b/core/core.pro
@@ -8,6 +8,12 @@ TEMPLATE = lib
 # Linux works just fine with `shared` only.
 CONFIG += shared static c++11
 
+coverage {
+    QMAKE_CXXFLAGS += --coverage -g -Og    # -fprofile-arcs -ftest-coverage
+    LIBS += -lgcov
+    CONFIG -= static
+}
+
 # Needed so that Windows doesn't do `release/` and `debug/` subfolders
 # in the output directory.
 CONFIG -= \
diff --git a/tests/tests_common.pri b/tests/tests_common.pri
index f9dc917..2f19985 100644
--- a/tests/tests_common.pri
+++ b/tests/tests_common.pri
@@ -3,6 +3,10 @@ QT += network websockets core sql testlib
 CONFIG += qt console warn_on depend_includepath testcase no_testcase_installs
 CONFIG -= app_bundle
 
+coverage {
+    LIBS += -lgcov
+}
+
 DESTDIR = $$PWD/../bin_tests
 
 win32: LIBS += -L$$PWD/../bin/ -lcore