diff --git a/test/test-functions b/test/test-functions
index 98b60d17f8f..5dc773cbbc2 100644
--- a/test/test-functions
+++ b/test/test-functions
@@ -1117,11 +1117,11 @@ install_systemd() {
     mkdir "$initdir/etc/systemd/system/user@.service.d/"
     echo -e "[Service]\nPassEnvironment=SYSTEMD_UNIT_PATH\n" >"$initdir/etc/systemd/system/user@.service.d/override.conf"
 
-    # When built with gcov, disable ProtectSystem= in the test images, since
-    # it prevents gcov to write the coverage reports (*.gcda files)
+    # When built with gcov, disable ProtectSystem= and ProtectHome in the test
+    # images, since it prevents gcov to write the coverage reports (*.gcda files)
     if get_bool "$IS_BUILT_WITH_COVERAGE"; then
         mkdir -p "$initdir/etc/systemd/system/service.d/"
-        echo -e "[Service]\nProtectSystem=no\n" >"$initdir/etc/systemd/system/service.d/override.conf"
+        echo -e "[Service]\nProtectSystem=no\nProtectHome=no\n" >"$initdir/etc/systemd/system/service.d/override.conf"
     fi
 }
 
diff --git a/test/test-network/systemd-networkd-tests.py b/test/test-network/systemd-networkd-tests.py
index aa810170724..a5b26b102fd 100755
--- a/test/test-network/systemd-networkd-tests.py
+++ b/test/test-network/systemd-networkd-tests.py
@@ -307,7 +307,10 @@ def setUpModule():
     if use_valgrind or asan_options or lsan_options or ubsan_options:
         drop_in += ['MemoryDenyWriteExecute=no']
     if with_coverage:
-        drop_in += ['ProtectSystem=no']
+        drop_in += [
+            'ProtectSystem=no',
+            'ProtectHome=no',
+        ]
 
     os.makedirs('/run/systemd/system/systemd-networkd.service.d', exist_ok=True)
     with open('/run/systemd/system/systemd-networkd.service.d/00-override.conf', mode='w') as f:
@@ -335,7 +338,10 @@ def setUpModule():
     if use_valgrind or asan_options or lsan_options or ubsan_options:
         drop_in += ['MemoryDenyWriteExecute=no']
     if with_coverage:
-        drop_in += ['ProtectSystem=no']
+        drop_in += [
+            'ProtectSystem=no',
+            'ProtectHome=no',
+        ]
 
     os.makedirs('/run/systemd/system/systemd-resolved.service.d', exist_ok=True)
     with open('/run/systemd/system/systemd-resolved.service.d/00-override.conf', mode='w') as f: