diff --git a/src/libcalamares/utils/Tests.cpp b/src/libcalamares/utils/Tests.cpp
index e5384d44d..ec7f6889a 100644
--- a/src/libcalamares/utils/Tests.cpp
+++ b/src/libcalamares/utils/Tests.cpp
@@ -19,8 +19,6 @@
  *
  */
 
-#include "Tests.h"
-
 #include "CalamaresUtilsSystem.h"
 #include "Entropy.h"
 #include "Logger.h"
@@ -40,7 +38,39 @@
 #include <sys/stat.h>
 #include <unistd.h>
 
-QTEST_GUILESS_MAIN( LibCalamaresTests )
+class LibCalamaresTests : public QObject
+{
+    Q_OBJECT
+public:
+    LibCalamaresTests();
+    ~LibCalamaresTests() override;
+
+private Q_SLOTS:
+    void initTestCase();
+    void testDebugLevels();
+
+    void testLoadSaveYaml();  // Just settings.conf
+    void testLoadSaveYamlExtended();  // Do a find() in the src dir
+
+    void testCommands();
+
+    /** @brief Test that all the UMask objects work correctly. */
+    void testUmask();
+
+    /** @brief Tests the entropy functions. */
+    void testEntropy();
+    void testPrintableEntropy();
+    void testOddSizedPrintable();
+
+    /** @brief Tests the RAII bits. */
+    void testBoolSetter();
+
+    /** @brief Tests the Traits bits. */
+    void testTraits();
+
+private:
+    void recursiveCompareMap( const QVariantMap& a, const QVariantMap& b, int depth );
+};
 
 LibCalamaresTests::LibCalamaresTests() {}
 
@@ -365,3 +395,9 @@ LibCalamaresTests::testTraits()
     QCOMPARE(t.thingify(c1), 2);  // Calls c1::do_the_thing()
     QCOMPARE(t.thingify(c2), -1);
 }
+
+QTEST_GUILESS_MAIN( LibCalamaresTests )
+
+#include "utils/moc-warnings.h"
+
+#include "Tests.moc"
diff --git a/src/libcalamares/utils/Tests.h b/src/libcalamares/utils/Tests.h
deleted file mode 100644
index 98ab028f7..000000000
--- a/src/libcalamares/utils/Tests.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/* === This file is part of Calamares - <https://github.com/calamares> ===
- *
- *   SPDX-FileCopyrightText: 2018 Adriaan de Groot <groot@kde.org>
- *   SPDX-License-Identifier: GPL-3.0-or-later
- *
- *
- *   Calamares is free software: you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation, either version 3 of the License, or
- *   (at your option) any later version.
- *
- *   Calamares is distributed in the hope that it will be useful,
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- *   GNU General Public License for more details.
- *
- *   You should have received a copy of the GNU General Public License
- *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#ifndef TESTS_H
-#define TESTS_H
-
-#include <QObject>
-
-class LibCalamaresTests : public QObject
-{
-    Q_OBJECT
-public:
-    LibCalamaresTests();
-    ~LibCalamaresTests() override;
-
-private Q_SLOTS:
-    void initTestCase();
-    void testDebugLevels();
-
-    void testLoadSaveYaml();  // Just settings.conf
-    void testLoadSaveYamlExtended();  // Do a find() in the src dir
-
-    void testCommands();
-
-    /** @brief Test that all the UMask objects work correctly. */
-    void testUmask();
-
-    /** @brief Tests the entropy functions. */
-    void testEntropy();
-    void testPrintableEntropy();
-    void testOddSizedPrintable();
-
-    /** @brief Tests the RAII bits. */
-    void testBoolSetter();
-
-    /** @brief Tests the Traits bits. */
-    void testTraits();
-
-private:
-    void recursiveCompareMap( const QVariantMap& a, const QVariantMap& b, int depth );
-};
-
-#endif